21056470

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{631}}^1$

素因数の和:756

約数の個数: 32

約数和(自身を含む): 39315456

約数和(自身を除く): 18258986

約数列:

[1, 2, 5, 10, 47, 71, 94, 142, 235, 355, 470, 631, 710, 1262, 3155, 3337, 6310, 6674, 16685, 29657, 33370, 44801, 59314, 89602, 148285, 224005, 296570, 448010, 2105647, 4211294, 10528235, 21056470]

約数ペア:

[(1, 21056470), (2, 10528235), (5, 4211294), (10, 2105647), (47, 448010), (71, 296570), (94, 224005), (142, 148285), (235, 89602), (355, 59314), (470, 44801), (631, 33370), (710, 29657), (1262, 16685), (3155, 6674), (3337, 6310)]