21172593

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{28573}}^1$

素因数の和:28608

約数の個数: 16

約数和(自身を含む): 32002880

約数和(自身を除く): 10830287

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 28573, 85719, 371449, 542887, 1114347, 1628661, 7057531, 21172593]

約数ペア:

[(1, 21172593), (3, 7057531), (13, 1628661), (19, 1114347), (39, 542887), (57, 371449), (247, 85719), (741, 28573)]