18811079

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{3769}}^1$

素因数の和:3830

約数の個数: 16

約数和(自身を含む): 23162880

約数和(自身を除く): 4351801

約数列:

[1, 7, 23, 31, 161, 217, 713, 3769, 4991, 26383, 86687, 116839, 606809, 817873, 2687297, 18811079]

約数ペア:

[(1, 18811079), (7, 2687297), (23, 817873), (31, 606809), (161, 116839), (217, 86687), (713, 26383), (3769, 4991)]