77989121

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1\times {\mathrm{1063}}^1$

素因数の和:1340

約数の個数: 16

約数和(自身を含む): 91521024

約数和(自身を除く): 13531903

約数列:

[1, 7, 47, 223, 329, 1063, 1561, 7441, 10481, 49961, 73367, 237049, 349727, 1659343, 11141303, 77989121]

約数ペア:

[(1, 77989121), (7, 11141303), (47, 1659343), (223, 349727), (329, 237049), (1063, 73367), (1561, 49961), (7441, 10481)]