21144625

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{307}}^1$

素因数の和:370

約数の個数: 32

約数和(自身を含む): 28828800

約数和(自身を除く): 7684175

約数列:

[1, 5, 19, 25, 29, 95, 125, 145, 307, 475, 551, 725, 1535, 2375, 2755, 3625, 5833, 7675, 8903, 13775, 29165, 38375, 44515, 68875, 145825, 169157, 222575, 729125, 845785, 1112875, 4228925, 21144625]

約数ペア:

[(1, 21144625), (5, 4228925), (19, 1112875), (25, 845785), (29, 729125), (95, 222575), (125, 169157), (145, 145825), (307, 68875), (475, 44515), (551, 38375), (725, 29165), (1535, 13775), (2375, 8903), (2755, 7675), (3625, 5833)]