21000768270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1723}}^1\times {\mathrm{23899}}^1$

素因数の和:25649

約数の個数: 64

約数和(自身を含む): 53399865600

約数和(自身を除く): 32399097330

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510, 1723, 3446, 5169, 8615, 10338, 17230, 23899, 25845, 29291, 47798, 51690, 58582, 71697, 87873, 119495, 143394, 146455, 175746, 238990, 292910, 358485, 406283, 439365, 716970, 812566, 878730, 1218849, 2031415, 2437698, 4062830, 6094245, 12188490, 41177977, 82355954, 123533931, 205889885, 247067862, 411779770, 617669655, 700025609, 1235339310, 1400051218, 2100076827, 3500128045, 4200153654, 7000256090, 10500384135, 21000768270]

約数ペア:

[(1, 21000768270), (2, 10500384135), (3, 7000256090), (5, 4200153654), (6, 3500128045), (10, 2100076827), (15, 1400051218), (17, 1235339310), (30, 700025609), (34, 617669655), (51, 411779770), (85, 247067862), (102, 205889885), (170, 123533931), (255, 82355954), (510, 41177977), (1723, 12188490), (3446, 6094245), (5169, 4062830), (8615, 2437698), (10338, 2031415), (17230, 1218849), (23899, 878730), (25845, 812566), (29291, 716970), (47798, 439365), (51690, 406283), (58582, 358485), (71697, 292910), (87873, 238990), (119495, 175746), (143394, 146455)]