18720662

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{4783}}^1$

素因数の和:4907

約数の個数: 16

約数和(自身を含む): 29852160

約数和(自身を除く): 11131498

約数列:

[1, 2, 19, 38, 103, 206, 1957, 3914, 4783, 9566, 90877, 181754, 492649, 985298, 9360331, 18720662]

約数ペア:

[(1, 18720662), (2, 9360331), (19, 985298), (38, 492649), (103, 181754), (206, 90877), (1957, 9566), (3914, 4783)]