20415868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{11317}}^1$

素因数の和:11373

約数の個数: 24

約数和(自身を含む): 39929904

約数和(自身を除く): 19514036

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 164, 451, 902, 1804, 11317, 22634, 45268, 124487, 248974, 463997, 497948, 927994, 1855988, 5103967, 10207934, 20415868]

約数ペア:

[(1, 20415868), (2, 10207934), (4, 5103967), (11, 1855988), (22, 927994), (41, 497948), (44, 463997), (82, 248974), (164, 124487), (451, 45268), (902, 22634), (1804, 11317)]