21126978

素因数分解:

$2^1\times 3^2\times {\mathrm{101}}^1\times {\mathrm{11621}}^1$

素因数の和:11730

約数の個数: 24

約数和(自身を含む): 46232316

約数和(自身を除く): 25105338

約数列:

[1, 2, 3, 6, 9, 18, 101, 202, 303, 606, 909, 1818, 11621, 23242, 34863, 69726, 104589, 209178, 1173721, 2347442, 3521163, 7042326, 10563489, 21126978]

約数ペア:

[(1, 21126978), (2, 10563489), (3, 7042326), (6, 3521163), (9, 2347442), (18, 1173721), (101, 209178), (202, 104589), (303, 69726), (606, 34863), (909, 23242), (1818, 11621)]