21491639

素因数分解:

${\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{523}}^1$

素因数の和:674

約数の個数: 16

約数和(自身を含む): 24208800

約数和(自身を除く): 2717161

約数列:

[1, 13, 29, 109, 377, 523, 1417, 3161, 6799, 15167, 41093, 57007, 197171, 741091, 1653203, 21491639]

約数ペア:

[(1, 21491639), (13, 1653203), (29, 741091), (109, 197171), (377, 57007), (523, 41093), (1417, 15167), (3161, 6799)]