18641008

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{17389}}^1$

素因数の和:17464

約数の個数: 20

約数和(自身を含む): 36658120

約数和(自身を除く): 18017112

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 17389, 34778, 69556, 139112, 278224, 1165063, 2330126, 4660252, 9320504, 18641008]

約数ペア:

[(1, 18641008), (2, 9320504), (4, 4660252), (8, 2330126), (16, 1165063), (67, 278224), (134, 139112), (268, 69556), (536, 34778), (1072, 17389)]