18711304

素因数分解:

$2^3\times {\mathrm{107}}^1\times {\mathrm{21859}}^1$

素因数の和:21972

約数の個数: 16

約数和(自身を含む): 35413200

約数和(自身を除く): 16701896

約数列:

[1, 2, 4, 8, 107, 214, 428, 856, 21859, 43718, 87436, 174872, 2338913, 4677826, 9355652, 18711304]

約数ペア:

[(1, 18711304), (2, 9355652), (4, 4677826), (8, 2338913), (107, 174872), (214, 87436), (428, 43718), (856, 21859)]