81193021

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{5683}}^1$

素因数の和:5860

約数の個数: 16

約数和(自身を含む): 100584064

約数和(自身を除く): 19391043

約数列:

[1, 7, 13, 91, 157, 1099, 2041, 5683, 14287, 39781, 73879, 517153, 892231, 6245617, 11599003, 81193021]

約数ペア:

[(1, 81193021), (7, 11599003), (13, 6245617), (91, 892231), (157, 517153), (1099, 73879), (2041, 39781), (5683, 14287)]