21234720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:155

約数の個数: 192

約数和(自身を含む): 74680704

約数和(自身を除く): 53445984

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 41, 48, 52, 60, 65, 78, 80, 82, 83, 96, 104, 120, 123, 130, 156, 160, 164, 166, 195, 205, 208, 240, 246, 249, 260, 312, 328, 332, 390, 410, 415, 416, 480, 492, 498, 520, 533, 615, 624, 656, 664, 780, 820, 830, 984, 996, 1040, 1066, 1079, 1230, 1245, 1248, 1312, 1328, 1560, 1599, 1640, 1660, 1968, 1992, 2080, 2132, 2158, 2460, 2490, 2656, 2665, 3120, 3198, 3237, 3280, 3320, 3403, 3936, 3984, 4264, 4316, 4920, 4980, 5330, 5395, 6240, 6396, 6474, 6560, 6640, 6806, 7968, 7995, 8528, 8632, 9840, 9960, 10209, 10660, 10790, 12792, 12948, 13280, 13612, 15990, 16185, 17015, 17056, 17264, 19680, 19920, 20418, 21320, 21580, 25584, 25896, 27224, 31980, 32370, 34030, 34528, 39840, 40836, 42640, 43160, 44239, 51045, 51168, 51792, 54448, 63960, 64740, 68060, 81672, 85280, 86320, 88478, 102090, 103584, 108896, 127920, 129480, 132717, 136120, 163344, 172640, 176956, 204180, 221195, 255840, 258960, 265434, 272240, 326688, 353912, 408360, 442390, 517920, 530868, 544480, 663585, 707824, 816720, 884780, 1061736, 1327170, 1415648, 1633440, 1769560, 2123472, 2654340, 3539120, 4246944, 5308680, 7078240, 10617360, 21234720]

約数ペア:

[(1, 21234720), (2, 10617360), (3, 7078240), (4, 5308680), (5, 4246944), (6, 3539120), (8, 2654340), (10, 2123472), (12, 1769560), (13, 1633440), (15, 1415648), (16, 1327170), (20, 1061736), (24, 884780), (26, 816720), (30, 707824), (32, 663585), (39, 544480), (40, 530868), (41, 517920), (48, 442390), (52, 408360), (60, 353912), (65, 326688), (78, 272240), (80, 265434), (82, 258960), (83, 255840), (96, 221195), (104, 204180), (120, 176956), (123, 172640), (130, 163344), (156, 136120), (160, 132717), (164, 129480), (166, 127920), (195, 108896), (205, 103584), (208, 102090), (240, 88478), (246, 86320), (249, 85280), (260, 81672), (312, 68060), (328, 64740), (332, 63960), (390, 54448), (410, 51792), (415, 51168), (416, 51045), (480, 44239), (492, 43160), (498, 42640), (520, 40836), (533, 39840), (615, 34528), (624, 34030), (656, 32370), (664, 31980), (780, 27224), (820, 25896), (830, 25584), (984, 21580), (996, 21320), (1040, 20418), (1066, 19920), (1079, 19680), (1230, 17264), (1245, 17056), (1248, 17015), (1312, 16185), (1328, 15990), (1560, 13612), (1599, 13280), (1640, 12948), (1660, 12792), (1968, 10790), (1992, 10660), (2080, 10209), (2132, 9960), (2158, 9840), (2460, 8632), (2490, 8528), (2656, 7995), (2665, 7968), (3120, 6806), (3198, 6640), (3237, 6560), (3280, 6474), (3320, 6396), (3403, 6240), (3936, 5395), (3984, 5330), (4264, 4980), (4316, 4920)]