20918219876

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{5531}}^1\times {\mathrm{20117}}^1$

素因数の和:25699

約数の個数: 24

約数和(自身を含む): 37394372736

約数和(自身を除く): 16476152860

約数列:

[1, 2, 4, 47, 94, 188, 5531, 11062, 20117, 22124, 40234, 80468, 259957, 519914, 945499, 1039828, 1890998, 3781996, 111267127, 222534254, 445068508, 5229554969, 10459109938, 20918219876]

約数ペア:

[(1, 20918219876), (2, 10459109938), (4, 5229554969), (47, 445068508), (94, 222534254), (188, 111267127), (5531, 3781996), (11062, 1890998), (20117, 1039828), (22124, 945499), (40234, 519914), (80468, 259957)]