20415212

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{281}}^1\times {\mathrm{443}}^1$

素因数の和:769

約数の個数: 24

約数和(自身を含む): 36811152

約数和(自身を除く): 16395940

約数列:

[1, 2, 4, 41, 82, 164, 281, 443, 562, 886, 1124, 1772, 11521, 18163, 23042, 36326, 46084, 72652, 124483, 248966, 497932, 5103803, 10207606, 20415212]

約数ペア:

[(1, 20415212), (2, 10207606), (4, 5103803), (41, 497932), (82, 248966), (164, 124483), (281, 72652), (443, 46084), (562, 36326), (886, 23042), (1124, 18163), (1772, 11521)]