21915346475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1306429}}^1$

素因数の和:1306511

約数の個数: 24

約数和(自身を含む): 30131501520

約数和(自身を除く): 8216155045

約数列:

[1, 5, 11, 25, 55, 61, 275, 305, 671, 1525, 3355, 16775, 1306429, 6532145, 14370719, 32660725, 71853595, 79692169, 359267975, 398460845, 876613859, 1992304225, 4383069295, 21915346475]

約数ペア:

[(1, 21915346475), (5, 4383069295), (11, 1992304225), (25, 876613859), (55, 398460845), (61, 359267975), (275, 79692169), (305, 71853595), (671, 32660725), (1525, 14370719), (3355, 6532145), (16775, 1306429)]