20558239

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{367}}^1$

素因数の和:550

約数の個数: 16

約数和(自身を含む): 23080960

約数和(自身を除く): 2522721

約数列:

[1, 13, 31, 139, 367, 403, 1807, 4309, 4771, 11377, 51013, 56017, 147901, 663169, 1581403, 20558239]

約数ペア:

[(1, 20558239), (13, 1581403), (31, 663169), (139, 147901), (367, 56017), (403, 51013), (1807, 11377), (4309, 4771)]