81974921

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1\times {\mathrm{2243}}^1$

素因数の和:2500

約数の個数: 16

約数和(自身を含む): 98233344

約数和(自身を除く): 16258423

約数列:

[1, 7, 23, 161, 227, 1589, 2243, 5221, 15701, 36547, 51589, 361123, 509161, 3564127, 11710703, 81974921]

約数ペア:

[(1, 81974921), (7, 11710703), (23, 3564127), (161, 509161), (227, 361123), (1589, 51589), (2243, 36547), (5221, 15701)]