20812365

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{66071}}^1$

素因数の和:66089

約数の個数: 24

約数和(自身を含む): 41228928

約数和(自身を除く): 20416563

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 66071, 198213, 330355, 462497, 594639, 991065, 1387491, 2312485, 2973195, 4162473, 6937455, 20812365]

約数ペア:

[(1, 20812365), (3, 6937455), (5, 4162473), (7, 2973195), (9, 2312485), (15, 1387491), (21, 991065), (35, 594639), (45, 462497), (63, 330355), (105, 198213), (315, 66071)]