81840871

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{359}}^1\times {\mathrm{1123}}^1$

素因数の和:1518

約数の個数: 16

約数和(自身を含む): 97113600

約数和(自身を除く): 15272729

約数列:

[1, 7, 29, 203, 359, 1123, 2513, 7861, 10411, 32567, 72877, 227969, 403157, 2822099, 11691553, 81840871]

約数ペア:

[(1, 81840871), (7, 11691553), (29, 2822099), (203, 403157), (359, 227969), (1123, 72877), (2513, 32567), (7861, 10411)]