21407100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1$

素因数の和:540

約数の個数: 144

約数和(自身を含む): 72912000

約数和(自身を除く): 51504900

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 25, 26, 30, 33, 39, 44, 50, 52, 55, 60, 65, 66, 75, 78, 100, 110, 130, 132, 143, 150, 156, 165, 195, 220, 260, 275, 286, 300, 325, 330, 390, 429, 499, 550, 572, 650, 660, 715, 780, 825, 858, 975, 998, 1100, 1300, 1430, 1497, 1650, 1716, 1950, 1996, 2145, 2495, 2860, 2994, 3300, 3575, 3900, 4290, 4990, 5489, 5988, 6487, 7150, 7485, 8580, 9980, 10725, 10978, 12475, 12974, 14300, 14970, 16467, 19461, 21450, 21956, 24950, 25948, 27445, 29940, 32435, 32934, 37425, 38922, 42900, 49900, 54890, 64870, 65868, 71357, 74850, 77844, 82335, 97305, 109780, 129740, 137225, 142714, 149700, 162175, 164670, 194610, 214071, 274450, 285428, 324350, 329340, 356785, 389220, 411675, 428142, 486525, 548900, 648700, 713570, 823350, 856284, 973050, 1070355, 1427140, 1646700, 1783925, 1946100, 2140710, 3567850, 4281420, 5351775, 7135700, 10703550, 21407100]

約数ペア:

[(1, 21407100), (2, 10703550), (3, 7135700), (4, 5351775), (5, 4281420), (6, 3567850), (10, 2140710), (11, 1946100), (12, 1783925), (13, 1646700), (15, 1427140), (20, 1070355), (22, 973050), (25, 856284), (26, 823350), (30, 713570), (33, 648700), (39, 548900), (44, 486525), (50, 428142), (52, 411675), (55, 389220), (60, 356785), (65, 329340), (66, 324350), (75, 285428), (78, 274450), (100, 214071), (110, 194610), (130, 164670), (132, 162175), (143, 149700), (150, 142714), (156, 137225), (165, 129740), (195, 109780), (220, 97305), (260, 82335), (275, 77844), (286, 74850), (300, 71357), (325, 65868), (330, 64870), (390, 54890), (429, 49900), (499, 42900), (550, 38922), (572, 37425), (650, 32934), (660, 32435), (715, 29940), (780, 27445), (825, 25948), (858, 24950), (975, 21956), (998, 21450), (1100, 19461), (1300, 16467), (1430, 14970), (1497, 14300), (1650, 12974), (1716, 12475), (1950, 10978), (1996, 10725), (2145, 9980), (2495, 8580), (2860, 7485), (2994, 7150), (3300, 6487), (3575, 5988), (3900, 5489), (4290, 4990)]