21535886

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{2131}}^1$

素因数の和:2327

約数の個数: 16

約数和(自身を含む): 33566208

約数和(自身を除く): 12030322

約数列:

[1, 2, 31, 62, 163, 326, 2131, 4262, 5053, 10106, 66061, 132122, 347353, 694706, 10767943, 21535886]

約数ペア:

[(1, 21535886), (2, 10767943), (31, 694706), (62, 347353), (163, 132122), (326, 66061), (2131, 10106), (4262, 5053)]