20873398721

素因数分解:

$7^2\times {\mathrm{59}}^1\times {\mathrm{7220131}}^1$

素因数の和:7220204

約数の個数: 12

約数和(自身を含む): 24692851440

約数和(自身を除く): 3819452719

約数列:

[1, 7, 49, 59, 413, 2891, 7220131, 50540917, 353786419, 425987729, 2981914103, 20873398721]

約数ペア:

[(1, 20873398721), (7, 2981914103), (49, 425987729), (59, 353786419), (413, 50540917), (2891, 7220131)]