21000819853

素因数分解:

${\mathrm{13}}^1\times {\mathrm{6871}}^1\times {\mathrm{235111}}^1$

素因数の和:241995

約数の個数: 8

約数和(自身を含む): 22619655296

約数和(自身を除く): 1618835443

約数列:

[1, 13, 6871, 89323, 235111, 3056443, 1615447681, 21000819853]

約数ペア:

[(1, 21000819853), (13, 1615447681), (6871, 3056443), (89323, 235111)]