21515176

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{577}}^1$

素因数の和:721

約数の個数: 32

約数和(自身を含む): 41616000

約数和(自身を除く): 20100824

約数列:

[1, 2, 4, 8, 59, 79, 118, 158, 236, 316, 472, 577, 632, 1154, 2308, 4616, 4661, 9322, 18644, 34043, 37288, 45583, 68086, 91166, 136172, 182332, 272344, 364664, 2689397, 5378794, 10757588, 21515176]

約数ペア:

[(1, 21515176), (2, 10757588), (4, 5378794), (8, 2689397), (59, 364664), (79, 272344), (118, 182332), (158, 136172), (236, 91166), (316, 68086), (472, 45583), (577, 37288), (632, 34043), (1154, 18644), (2308, 9322), (4616, 4661)]