21116550

素因数分解:

$2^1\times 3^1\times 5^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1$

素因数の和:72

約数の個数: 216

約数和(自身を含む): 69845976

約数和(自身を除く): 48729426

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 17, 21, 25, 26, 30, 34, 35, 39, 42, 49, 50, 51, 65, 70, 75, 78, 85, 91, 98, 102, 105, 119, 130, 147, 150, 169, 170, 175, 182, 195, 210, 221, 238, 245, 255, 273, 294, 325, 338, 350, 357, 390, 425, 442, 455, 490, 507, 510, 525, 546, 595, 637, 650, 663, 714, 735, 833, 845, 850, 910, 975, 1014, 1050, 1105, 1183, 1190, 1225, 1274, 1275, 1326, 1365, 1470, 1547, 1666, 1690, 1785, 1911, 1950, 2210, 2275, 2366, 2450, 2499, 2535, 2550, 2730, 2873, 2975, 3094, 3185, 3315, 3549, 3570, 3675, 3822, 4165, 4225, 4550, 4641, 4998, 5070, 5525, 5746, 5915, 5950, 6370, 6630, 6825, 7098, 7350, 7735, 8281, 8330, 8450, 8619, 8925, 9282, 9555, 10829, 11050, 11830, 12495, 12675, 13650, 14365, 15470, 15925, 16562, 16575, 17238, 17745, 17850, 19110, 20111, 20825, 21658, 23205, 24843, 24990, 25350, 28730, 29575, 31850, 32487, 33150, 35490, 38675, 40222, 41405, 41650, 43095, 46410, 47775, 49686, 54145, 59150, 60333, 62475, 64974, 71825, 77350, 82810, 86190, 88725, 95550, 100555, 108290, 116025, 120666, 124215, 124950, 140777, 143650, 162435, 177450, 201110, 207025, 215475, 232050, 248430, 270725, 281554, 301665, 324870, 414050, 422331, 430950, 502775, 541450, 603330, 621075, 703885, 812175, 844662, 1005550, 1242150, 1407770, 1508325, 1624350, 2111655, 3016650, 3519425, 4223310, 7038850, 10558275, 21116550]

約数ペア:

[(1, 21116550), (2, 10558275), (3, 7038850), (5, 4223310), (6, 3519425), (7, 3016650), (10, 2111655), (13, 1624350), (14, 1508325), (15, 1407770), (17, 1242150), (21, 1005550), (25, 844662), (26, 812175), (30, 703885), (34, 621075), (35, 603330), (39, 541450), (42, 502775), (49, 430950), (50, 422331), (51, 414050), (65, 324870), (70, 301665), (75, 281554), (78, 270725), (85, 248430), (91, 232050), (98, 215475), (102, 207025), (105, 201110), (119, 177450), (130, 162435), (147, 143650), (150, 140777), (169, 124950), (170, 124215), (175, 120666), (182, 116025), (195, 108290), (210, 100555), (221, 95550), (238, 88725), (245, 86190), (255, 82810), (273, 77350), (294, 71825), (325, 64974), (338, 62475), (350, 60333), (357, 59150), (390, 54145), (425, 49686), (442, 47775), (455, 46410), (490, 43095), (507, 41650), (510, 41405), (525, 40222), (546, 38675), (595, 35490), (637, 33150), (650, 32487), (663, 31850), (714, 29575), (735, 28730), (833, 25350), (845, 24990), (850, 24843), (910, 23205), (975, 21658), (1014, 20825), (1050, 20111), (1105, 19110), (1183, 17850), (1190, 17745), (1225, 17238), (1274, 16575), (1275, 16562), (1326, 15925), (1365, 15470), (1470, 14365), (1547, 13650), (1666, 12675), (1690, 12495), (1785, 11830), (1911, 11050), (1950, 10829), (2210, 9555), (2275, 9282), (2366, 8925), (2450, 8619), (2499, 8450), (2535, 8330), (2550, 8281), (2730, 7735), (2873, 7350), (2975, 7098), (3094, 6825), (3185, 6630), (3315, 6370), (3549, 5950), (3570, 5915), (3675, 5746), (3822, 5525), (4165, 5070), (4225, 4998), (4550, 4641)]