20906431

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7411}}^1$

素因数の和:7462

約数の個数: 16

約数和(自身を含む): 26564608

約数和(自身を除く): 5658177

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 7411, 51877, 96343, 229741, 674401, 1608187, 2986633, 20906431]

約数ペア:

[(1, 20906431), (7, 2986633), (13, 1608187), (31, 674401), (91, 229741), (217, 96343), (403, 51877), (2821, 7411)]