21844925

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1$

素因数の和:509

約数の個数: 24

約数和(自身を含む): 28426752

約数和(自身を除く): 6581827

約数列:

[1, 5, 25, 31, 71, 155, 355, 397, 775, 1775, 1985, 2201, 9925, 11005, 12307, 28187, 55025, 61535, 140935, 307675, 704675, 873797, 4368985, 21844925]

約数ペア:

[(1, 21844925), (5, 4368985), (25, 873797), (31, 704675), (71, 307675), (155, 140935), (355, 61535), (397, 55025), (775, 28187), (1775, 12307), (1985, 11005), (2201, 9925)]