208490401

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{19843}}^1$

素因数の和:19948

約数の個数: 16

約数和(自身を含む): 254003200

約数和(自身を除く): 45512799

約数列:

[1, 7, 19, 79, 133, 553, 1501, 10507, 19843, 138901, 377017, 1567597, 2639119, 10973179, 29784343, 208490401]

約数ペア:

[(1, 208490401), (7, 29784343), (19, 10973179), (79, 2639119), (133, 1567597), (553, 377017), (1501, 138901), (10507, 19843)]