19914561

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{1861}}^1$

素因数の和:1937

約数の個数: 24

約数和(自身を含む): 30499560

約数和(自身を除く): 10584999

約数列:

[1, 3, 9, 29, 41, 87, 123, 261, 369, 1189, 1861, 3567, 5583, 10701, 16749, 53969, 76301, 161907, 228903, 485721, 686709, 2212729, 6638187, 19914561]

約数ペア:

[(1, 19914561), (3, 6638187), (9, 2212729), (29, 686709), (41, 485721), (87, 228903), (123, 161907), (261, 76301), (369, 53969), (1189, 16749), (1861, 10701), (3567, 5583)]