18540907

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{619}}^1$

素因数の和:1026

約数の個数: 16

約数和(自身を含む): 23212800

約数和(自身を除く): 4671893

約数列:

[1, 7, 11, 77, 389, 619, 2723, 4279, 4333, 6809, 29953, 47663, 240791, 1685537, 2648701, 18540907]

約数ペア:

[(1, 18540907), (7, 2648701), (11, 1685537), (77, 240791), (389, 47663), (619, 29953), (2723, 6809), (4279, 4333)]