21801950

素因数分解:

$2^1\times 5^2\times {\mathrm{271}}^1\times {\mathrm{1609}}^1$

素因数の和:1892

約数の個数: 24

約数和(自身を含む): 40726560

約数和(自身を除く): 18924610

約数列:

[1, 2, 5, 10, 25, 50, 271, 542, 1355, 1609, 2710, 3218, 6775, 8045, 13550, 16090, 40225, 80450, 436039, 872078, 2180195, 4360390, 10900975, 21801950]

約数ペア:

[(1, 21801950), (2, 10900975), (5, 4360390), (10, 2180195), (25, 872078), (50, 436039), (271, 80450), (542, 40225), (1355, 16090), (1609, 13550), (2710, 8045), (3218, 6775)]