21731380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{98779}}^1$

素因数の和:98799

約数の個数: 24

約数和(自身を含む): 49785120

約数和(自身を除く): 28053740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 98779, 197558, 395116, 493895, 987790, 1086569, 1975580, 2173138, 4346276, 5432845, 10865690, 21731380]

約数ペア:

[(1, 21731380), (2, 10865690), (4, 5432845), (5, 4346276), (10, 2173138), (11, 1975580), (20, 1086569), (22, 987790), (44, 493895), (55, 395116), (110, 197558), (220, 98779)]