18521954

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{76537}}^1$

素因数の和:76561

約数の個数: 12

約数和(自身を含む): 30538662

約数和(自身を除く): 12016708

約数列:

[1, 2, 11, 22, 121, 242, 76537, 153074, 841907, 1683814, 9260977, 18521954]

約数ペア:

[(1, 18521954), (2, 9260977), (11, 1683814), (22, 841907), (121, 153074), (242, 76537)]