21292816

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{11777}}^1$

素因数の和:11898

約数の個数: 20

約数和(自身を含む): 41623452

約数和(自身を除く): 20330636

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 11777, 23554, 47108, 94216, 188432, 1330801, 2661602, 5323204, 10646408, 21292816]

約数ペア:

[(1, 21292816), (2, 10646408), (4, 5323204), (8, 2661602), (16, 1330801), (113, 188432), (226, 94216), (452, 47108), (904, 23554), (1808, 11777)]