21902481

素因数分解:

$3^4\times {\mathrm{317}}^1\times {\mathrm{853}}^1$

素因数の和:1182

約数の個数: 20

約数和(自身を含む): 32860212

約数和(自身を除く): 10957731

約数列:

[1, 3, 9, 27, 81, 317, 853, 951, 2559, 2853, 7677, 8559, 23031, 25677, 69093, 270401, 811203, 2433609, 7300827, 21902481]

約数ペア:

[(1, 21902481), (3, 7300827), (9, 2433609), (27, 811203), (81, 270401), (317, 69093), (853, 25677), (951, 23031), (2559, 8559), (2853, 7677)]