20870113

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1637}}^1$

素因数の和:1728

約数の個数: 16

約数和(自身を含む): 24373440

約数和(自身を除く): 3503327

約数列:

[1, 11, 19, 61, 209, 671, 1159, 1637, 12749, 18007, 31103, 99857, 342133, 1098427, 1897283, 20870113]

約数ペア:

[(1, 20870113), (11, 1897283), (19, 1098427), (61, 342133), (209, 99857), (671, 31103), (1159, 18007), (1637, 12749)]