81977903

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1\times {\mathrm{1031}}^1$

素因数の和:1382

約数の個数: 16

約数和(自身を含む): 96628224

約数和(自身を除く): 14650321

約数列:

[1, 7, 37, 259, 307, 1031, 2149, 7217, 11359, 38147, 79513, 267029, 316517, 2215619, 11711129, 81977903]

約数ペア:

[(1, 81977903), (7, 11711129), (37, 2215619), (259, 316517), (307, 267029), (1031, 79513), (2149, 38147), (7217, 11359)]