81355967

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{55609}}^1$

素因数の和:55646

約数の個数: 16

約数和(自身を含む): 106771200

約数和(自身を除く): 25415233

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 55609, 389263, 611699, 1056571, 4281893, 7395997, 11622281, 81355967]

約数ペア:

[(1, 81355967), (7, 11622281), (11, 7395997), (19, 4281893), (77, 1056571), (133, 611699), (209, 389263), (1463, 55609)]