21082711

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{827}}^1$

素因数の和:930

約数の個数: 16

約数和(自身を含む): 23786784

約数和(自身を除く): 2704073

約数列:

[1, 13, 37, 53, 481, 689, 827, 1961, 10751, 25493, 30599, 43831, 397787, 569803, 1621747, 21082711]

約数ペア:

[(1, 21082711), (13, 1621747), (37, 569803), (53, 397787), (481, 43831), (689, 30599), (827, 25493), (1961, 10751)]