18947674

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^2$

素因数の和:274

約数の個数: 24

約数和(自身を含む): 30853440

約数和(自身を除く): 11905766

約数列:

[1, 2, 19, 38, 47, 94, 103, 206, 893, 1786, 1957, 3914, 4841, 9682, 10609, 21218, 91979, 183958, 201571, 403142, 498623, 997246, 9473837, 18947674]

約数ペア:

[(1, 18947674), (2, 9473837), (19, 997246), (38, 498623), (47, 403142), (94, 201571), (103, 183958), (206, 91979), (893, 21218), (1786, 10609), (1957, 9682), (3914, 4841)]