21295856

素因数分解:

$2^4\times {\mathrm{239}}^1\times {\mathrm{5569}}^1$

素因数の和:5816

約数の個数: 20

約数和(自身を含む): 41440800

約数和(自身を除く): 20144944

約数列:

[1, 2, 4, 8, 16, 239, 478, 956, 1912, 3824, 5569, 11138, 22276, 44552, 89104, 1330991, 2661982, 5323964, 10647928, 21295856]

約数ペア:

[(1, 21295856), (2, 10647928), (4, 5323964), (8, 2661982), (16, 1330991), (239, 89104), (478, 44552), (956, 22276), (1912, 11138), (3824, 5569)]