21551608

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{207227}}^1$

素因数の和:207246

約数の個数: 16

約数和(自身を含む): 43517880

約数和(自身を除く): 21966272

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 207227, 414454, 828908, 1657816, 2693951, 5387902, 10775804, 21551608]

約数ペア:

[(1, 21551608), (2, 10775804), (4, 5387902), (8, 2693951), (13, 1657816), (26, 828908), (52, 414454), (104, 207227)]