21856890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{619}}^1$

素因数の和:747

約数の個数: 64

約数和(自身を含む): 57853440

約数和(自身を除く): 35996550

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 107, 110, 165, 214, 321, 330, 535, 619, 642, 1070, 1177, 1238, 1605, 1857, 2354, 3095, 3210, 3531, 3714, 5885, 6190, 6809, 7062, 9285, 11770, 13618, 17655, 18570, 20427, 34045, 35310, 40854, 66233, 68090, 102135, 132466, 198699, 204270, 331165, 397398, 662330, 728563, 993495, 1457126, 1986990, 2185689, 3642815, 4371378, 7285630, 10928445, 21856890]

約数ペア:

[(1, 21856890), (2, 10928445), (3, 7285630), (5, 4371378), (6, 3642815), (10, 2185689), (11, 1986990), (15, 1457126), (22, 993495), (30, 728563), (33, 662330), (55, 397398), (66, 331165), (107, 204270), (110, 198699), (165, 132466), (214, 102135), (321, 68090), (330, 66233), (535, 40854), (619, 35310), (642, 34045), (1070, 20427), (1177, 18570), (1238, 17655), (1605, 13618), (1857, 11770), (2354, 9285), (3095, 7062), (3210, 6809), (3531, 6190), (3714, 5885)]