21108730

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{547}}^1$

素因数の和:798

約数の個数: 32

約数和(自身を含む): 40481856

約数和(自身を除く): 19373126

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 227, 454, 547, 1094, 1135, 2270, 2735, 3859, 5470, 7718, 9299, 18598, 19295, 38590, 46495, 92990, 124169, 248338, 620845, 1241690, 2110873, 4221746, 10554365, 21108730]

約数ペア:

[(1, 21108730), (2, 10554365), (5, 4221746), (10, 2110873), (17, 1241690), (34, 620845), (85, 248338), (170, 124169), (227, 92990), (454, 46495), (547, 38590), (1094, 19295), (1135, 18598), (2270, 9299), (2735, 7718), (3859, 5470)]