21063675

素因数分解:

$3^1\times 5^2\times {\mathrm{163}}^1\times {\mathrm{1723}}^1$

素因数の和:1899

約数の個数: 24

約数和(自身を含む): 35059264

約数和(自身を除く): 13995589

約数列:

[1, 3, 5, 15, 25, 75, 163, 489, 815, 1723, 2445, 4075, 5169, 8615, 12225, 25845, 43075, 129225, 280849, 842547, 1404245, 4212735, 7021225, 21063675]

約数ペア:

[(1, 21063675), (3, 7021225), (5, 4212735), (15, 1404245), (25, 842547), (75, 280849), (163, 129225), (489, 43075), (815, 25845), (1723, 12225), (2445, 8615), (4075, 5169)]