21047730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{63781}}^1$

素因数の和:63802

約数の個数: 32

約数和(自身を含む): 55107648

約数和(自身を除く): 34059918

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330, 63781, 127562, 191343, 318905, 382686, 637810, 701591, 956715, 1403182, 1913430, 2104773, 3507955, 4209546, 7015910, 10523865, 21047730]

約数ペア:

[(1, 21047730), (2, 10523865), (3, 7015910), (5, 4209546), (6, 3507955), (10, 2104773), (11, 1913430), (15, 1403182), (22, 956715), (30, 701591), (33, 637810), (55, 382686), (66, 318905), (110, 191343), (165, 127562), (330, 63781)]