21086936

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{11927}}^1$

素因数の和:11963

約数の個数: 32

約数和(自身を含む): 45087840

約数和(自身を除く): 24000904

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 11927, 23854, 47708, 95416, 155051, 202759, 310102, 405518, 620204, 811036, 1240408, 1622072, 2635867, 5271734, 10543468, 21086936]

約数ペア:

[(1, 21086936), (2, 10543468), (4, 5271734), (8, 2635867), (13, 1622072), (17, 1240408), (26, 811036), (34, 620204), (52, 405518), (68, 310102), (104, 202759), (136, 155051), (221, 95416), (442, 47708), (884, 23854), (1768, 11927)]