21357856

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{51341}}^1$

素因数の和:51364

約数の個数: 24

約数和(自身を含む): 45283644

約数和(自身を除く): 23925788

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 51341, 102682, 205364, 410728, 667433, 821456, 1334866, 1642912, 2669732, 5339464, 10678928, 21357856]

約数ペア:

[(1, 21357856), (2, 10678928), (4, 5339464), (8, 2669732), (13, 1642912), (16, 1334866), (26, 821456), (32, 667433), (52, 410728), (104, 205364), (208, 102682), (416, 51341)]