21241175

素因数分解:

$5^2\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:299

約数の個数: 24

約数和(自身を含む): 27197664

約数和(自身を除く): 5956489

約数列:

[1, 5, 25, 73, 103, 113, 365, 515, 565, 1825, 2575, 2825, 7519, 8249, 11639, 37595, 41245, 58195, 187975, 206225, 290975, 849647, 4248235, 21241175]

約数ペア:

[(1, 21241175), (5, 4248235), (25, 849647), (73, 290975), (103, 206225), (113, 187975), (365, 58195), (515, 41245), (565, 37595), (1825, 11639), (2575, 8249), (2825, 7519)]