21117730

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{733}}^1$

素因数の和:850

約数の個数: 32

約数和(自身を含む): 39530304

約数和(自身を除く): 18412574

約数列:

[1, 2, 5, 10, 43, 67, 86, 134, 215, 335, 430, 670, 733, 1466, 2881, 3665, 5762, 7330, 14405, 28810, 31519, 49111, 63038, 98222, 157595, 245555, 315190, 491110, 2111773, 4223546, 10558865, 21117730]

約数ペア:

[(1, 21117730), (2, 10558865), (5, 4223546), (10, 2111773), (43, 491110), (67, 315190), (86, 245555), (134, 157595), (215, 98222), (335, 63038), (430, 49111), (670, 31519), (733, 28810), (1466, 14405), (2881, 7330), (3665, 5762)]