20670788

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{2557}}^1$

素因数の和:2651

約数の個数: 24

約数和(自身を含む): 37817472

約数和(自身を除く): 17146684

約数列:

[1, 2, 4, 43, 47, 86, 94, 172, 188, 2021, 2557, 4042, 5114, 8084, 10228, 109951, 120179, 219902, 240358, 439804, 480716, 5167697, 10335394, 20670788]

約数ペア:

[(1, 20670788), (2, 10335394), (4, 5167697), (43, 480716), (47, 439804), (86, 240358), (94, 219902), (172, 120179), (188, 109951), (2021, 10228), (2557, 8084), (4042, 5114)]