21292808

素因数分解:

$2^3\times {\mathrm{1409}}^1\times {\mathrm{1889}}^1$

素因数の和:3304

約数の個数: 16

約数和(自身を含む): 39973500

約数和(自身を除く): 18680692

約数列:

[1, 2, 4, 8, 1409, 1889, 2818, 3778, 5636, 7556, 11272, 15112, 2661601, 5323202, 10646404, 21292808]

約数ペア:

[(1, 21292808), (2, 10646404), (4, 5323202), (8, 2661601), (1409, 15112), (1889, 11272), (2818, 7556), (3778, 5636)]