18955573

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{3109}}^1$

素因数の和:3196

約数の個数: 16

約数和(自身を含む): 23685760

約数和(自身を除く): 4730187

約数列:

[1, 7, 13, 67, 91, 469, 871, 3109, 6097, 21763, 40417, 208303, 282919, 1458121, 2707939, 18955573]

約数ペア:

[(1, 18955573), (7, 2707939), (13, 1458121), (67, 282919), (91, 208303), (469, 40417), (871, 21763), (3109, 6097)]