21353816

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{1607}}^1$

素因数の和:1775

約数の個数: 32

約数和(自身を含む): 43994880

約数和(自身を除く): 22641064

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 151, 302, 604, 1208, 1607, 1661, 3214, 3322, 6428, 6644, 12856, 13288, 17677, 35354, 70708, 141416, 242657, 485314, 970628, 1941256, 2669227, 5338454, 10676908, 21353816]

約数ペア:

[(1, 21353816), (2, 10676908), (4, 5338454), (8, 2669227), (11, 1941256), (22, 970628), (44, 485314), (88, 242657), (151, 141416), (302, 70708), (604, 35354), (1208, 17677), (1607, 13288), (1661, 12856), (3214, 6644), (3322, 6428)]