21298680

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:111

約数の個数: 256

約数和(自身を含む): 80438400

約数和(自身を除く): 59139720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 37, 39, 40, 41, 45, 52, 54, 60, 65, 72, 74, 78, 82, 90, 104, 108, 111, 117, 120, 123, 130, 135, 148, 156, 164, 180, 185, 195, 205, 216, 222, 234, 246, 260, 270, 296, 312, 328, 333, 351, 360, 369, 370, 390, 410, 444, 468, 481, 492, 520, 533, 540, 555, 585, 615, 666, 702, 738, 740, 780, 820, 888, 936, 962, 984, 999, 1066, 1080, 1107, 1110, 1170, 1230, 1332, 1404, 1443, 1476, 1480, 1517, 1560, 1599, 1640, 1665, 1755, 1845, 1924, 1998, 2132, 2214, 2220, 2340, 2405, 2460, 2664, 2665, 2808, 2886, 2952, 3034, 3198, 3330, 3510, 3690, 3848, 3996, 4264, 4329, 4428, 4440, 4551, 4680, 4797, 4810, 4920, 4995, 5330, 5535, 5772, 6068, 6396, 6660, 7020, 7215, 7380, 7585, 7992, 7995, 8658, 8856, 9102, 9594, 9620, 9990, 10660, 11070, 11544, 12136, 12792, 12987, 13320, 13653, 14040, 14391, 14430, 14760, 15170, 15990, 17316, 18204, 19188, 19240, 19721, 19980, 21320, 21645, 22140, 22755, 23985, 25974, 27306, 28782, 28860, 30340, 31980, 34632, 36408, 38376, 39442, 39960, 40959, 43290, 44280, 45510, 47970, 51948, 54612, 57564, 57720, 59163, 60680, 63960, 64935, 68265, 71955, 78884, 81918, 86580, 91020, 95940, 98605, 103896, 109224, 115128, 118326, 129870, 136530, 143910, 157768, 163836, 173160, 177489, 182040, 191880, 197210, 204795, 236652, 259740, 273060, 287820, 295815, 327672, 354978, 394420, 409590, 473304, 519480, 532467, 546120, 575640, 591630, 709956, 788840, 819180, 887445, 1064934, 1183260, 1419912, 1638360, 1774890, 2129868, 2366520, 2662335, 3549780, 4259736, 5324670, 7099560, 10649340, 21298680]

約数ペア:

[(1, 21298680), (2, 10649340), (3, 7099560), (4, 5324670), (5, 4259736), (6, 3549780), (8, 2662335), (9, 2366520), (10, 2129868), (12, 1774890), (13, 1638360), (15, 1419912), (18, 1183260), (20, 1064934), (24, 887445), (26, 819180), (27, 788840), (30, 709956), (36, 591630), (37, 575640), (39, 546120), (40, 532467), (41, 519480), (45, 473304), (52, 409590), (54, 394420), (60, 354978), (65, 327672), (72, 295815), (74, 287820), (78, 273060), (82, 259740), (90, 236652), (104, 204795), (108, 197210), (111, 191880), (117, 182040), (120, 177489), (123, 173160), (130, 163836), (135, 157768), (148, 143910), (156, 136530), (164, 129870), (180, 118326), (185, 115128), (195, 109224), (205, 103896), (216, 98605), (222, 95940), (234, 91020), (246, 86580), (260, 81918), (270, 78884), (296, 71955), (312, 68265), (328, 64935), (333, 63960), (351, 60680), (360, 59163), (369, 57720), (370, 57564), (390, 54612), (410, 51948), (444, 47970), (468, 45510), (481, 44280), (492, 43290), (520, 40959), (533, 39960), (540, 39442), (555, 38376), (585, 36408), (615, 34632), (666, 31980), (702, 30340), (738, 28860), (740, 28782), (780, 27306), (820, 25974), (888, 23985), (936, 22755), (962, 22140), (984, 21645), (999, 21320), (1066, 19980), (1080, 19721), (1107, 19240), (1110, 19188), (1170, 18204), (1230, 17316), (1332, 15990), (1404, 15170), (1443, 14760), (1476, 14430), (1480, 14391), (1517, 14040), (1560, 13653), (1599, 13320), (1640, 12987), (1665, 12792), (1755, 12136), (1845, 11544), (1924, 11070), (1998, 10660), (2132, 9990), (2214, 9620), (2220, 9594), (2340, 9102), (2405, 8856), (2460, 8658), (2664, 7995), (2665, 7992), (2808, 7585), (2886, 7380), (2952, 7215), (3034, 7020), (3198, 6660), (3330, 6396), (3510, 6068), (3690, 5772), (3848, 5535), (3996, 5330), (4264, 4995), (4329, 4920), (4428, 4810), (4440, 4797), (4551, 4680)]