21386878

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{2267}}^1$

素因数の和:2411

約数の個数: 16

約数和(自身を含む): 33067440

約数和(自身を除く): 11680562

約数列:

[1, 2, 53, 89, 106, 178, 2267, 4534, 4717, 9434, 120151, 201763, 240302, 403526, 10693439, 21386878]

約数ペア:

[(1, 21386878), (2, 10693439), (53, 403526), (89, 240302), (106, 201763), (178, 120151), (2267, 9434), (4534, 4717)]