20698818

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{1229}}^1$

素因数の和:1642

約数の個数: 32

約数和(自身を含む): 47468160

約数和(自身を除く): 26769342

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 401, 802, 1203, 1229, 2406, 2458, 2807, 3687, 5614, 7374, 8421, 8603, 16842, 17206, 25809, 51618, 492829, 985658, 1478487, 2956974, 3449803, 6899606, 10349409, 20698818]

約数ペア:

[(1, 20698818), (2, 10349409), (3, 6899606), (6, 3449803), (7, 2956974), (14, 1478487), (21, 985658), (42, 492829), (401, 51618), (802, 25809), (1203, 17206), (1229, 16842), (2406, 8603), (2458, 8421), (2807, 7374), (3687, 5614)]