21557676

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{256639}}^1$

素因数の和:256653

約数の個数: 24

約数和(自身を含む): 57487360

約数和(自身を除く): 35929684

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 256639, 513278, 769917, 1026556, 1539834, 1796473, 3079668, 3592946, 5389419, 7185892, 10778838, 21557676]

約数ペア:

[(1, 21557676), (2, 10778838), (3, 7185892), (4, 5389419), (6, 3592946), (7, 3079668), (12, 1796473), (14, 1539834), (21, 1026556), (28, 769917), (42, 513278), (84, 256639)]