21163734

素因数分解:

$2^1\times 3^3\times {\mathrm{391921}}^1$

素因数の和:391932

約数の個数: 16

約数和(自身を含む): 47030640

約数和(自身を除く): 25866906

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 391921, 783842, 1175763, 2351526, 3527289, 7054578, 10581867, 21163734]

約数ペア:

[(1, 21163734), (2, 10581867), (3, 7054578), (6, 3527289), (9, 2351526), (18, 1175763), (27, 783842), (54, 391921)]