21781220762

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53648327}}^1$

素因数の和:53648365

約数の個数: 16

約数和(自身を含む): 38626796160

約数和(自身を除く): 16845575398

約数列:

[1, 2, 7, 14, 29, 58, 203, 406, 53648327, 107296654, 375538289, 751076578, 1555801483, 3111602966, 10890610381, 21781220762]

約数ペア:

[(1, 21781220762), (2, 10890610381), (7, 3111602966), (14, 1555801483), (29, 751076578), (58, 375538289), (203, 107296654), (406, 53648327)]