21124450

素因数分解:

$2^1\times 5^2\times {\mathrm{271}}^1\times {\mathrm{1559}}^1$

素因数の和:1842

約数の個数: 24

約数和(自身を含む): 39461760

約数和(自身を除く): 18337310

約数列:

[1, 2, 5, 10, 25, 50, 271, 542, 1355, 1559, 2710, 3118, 6775, 7795, 13550, 15590, 38975, 77950, 422489, 844978, 2112445, 4224890, 10562225, 21124450]

約数ペア:

[(1, 21124450), (2, 10562225), (5, 4224890), (10, 2112445), (25, 844978), (50, 422489), (271, 77950), (542, 38975), (1355, 15590), (1559, 13550), (2710, 7795), (3118, 6775)]