20146221

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{491}}^1$

素因数の和:641

約数の個数: 24

約数和(自身を含む): 30086784

約数和(自身を除く): 9940563

約数列:

[1, 3, 9, 47, 97, 141, 291, 423, 491, 873, 1473, 4419, 4559, 13677, 23077, 41031, 47627, 69231, 142881, 207693, 428643, 2238469, 6715407, 20146221]

約数ペア:

[(1, 20146221), (3, 6715407), (9, 2238469), (47, 428643), (97, 207693), (141, 142881), (291, 69231), (423, 47627), (491, 41031), (873, 23077), (1473, 13677), (4419, 4559)]