21175709

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1031}}^1$

素因数の和:1120

約数の個数: 16

約数和(自身を含む): 23777280

約数和(自身を除く): 2601571

約数列:

[1, 19, 23, 47, 437, 893, 1031, 1081, 19589, 20539, 23713, 48457, 450547, 920683, 1114511, 21175709]

約数ペア:

[(1, 21175709), (19, 1114511), (23, 920683), (47, 450547), (437, 48457), (893, 23713), (1031, 20539), (1081, 19589)]