81626909

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{30931}}^1$

素因数の和:30980

約数の個数: 16

約数和(自身を含む): 103931520

約数和(自身を除く): 22304611

約数列:

[1, 7, 13, 29, 91, 203, 377, 2639, 30931, 216517, 402103, 896999, 2814721, 6278993, 11660987, 81626909]

約数ペア:

[(1, 81626909), (7, 11660987), (13, 6278993), (29, 2814721), (91, 896999), (203, 402103), (377, 216517), (2639, 30931)]