21062518

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{4621}}^1$

素因数の和:4719

約数の個数: 16

約数和(自身を含む): 32945616

約数和(自身を除く): 11883098

約数列:

[1, 2, 43, 53, 86, 106, 2279, 4558, 4621, 9242, 198703, 244913, 397406, 489826, 10531259, 21062518]

約数ペア:

[(1, 21062518), (2, 10531259), (43, 489826), (53, 397406), (86, 244913), (106, 198703), (2279, 9242), (4558, 4621)]