20878578

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{165703}}^1$

素因数の和:165718

約数の個数: 24

約数和(自身を含む): 51699648

約数和(自身を除く): 30821070

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 165703, 331406, 497109, 994218, 1159921, 1491327, 2319842, 2982654, 3479763, 6959526, 10439289, 20878578]

約数ペア:

[(1, 20878578), (2, 10439289), (3, 6959526), (6, 3479763), (7, 2982654), (9, 2319842), (14, 1491327), (18, 1159921), (21, 994218), (42, 497109), (63, 331406), (126, 165703)]