18718018

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{6121}}^1$

素因数の和:6273

約数の個数: 16

約数和(自身を含む): 30854880

約数和(自身を除く): 12136862

約数列:

[1, 2, 11, 22, 139, 278, 1529, 3058, 6121, 12242, 67331, 134662, 850819, 1701638, 9359009, 18718018]

約数ペア:

[(1, 18718018), (2, 9359009), (11, 1701638), (22, 850819), (139, 134662), (278, 67331), (1529, 12242), (3058, 6121)]