18816578

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{6529}}^1$

素因数の和:6673

約数の個数: 16

約数和(自身を含む): 31030560

約数和(自身を除く): 12213982

約数列:

[1, 2, 11, 22, 131, 262, 1441, 2882, 6529, 13058, 71819, 143638, 855299, 1710598, 9408289, 18816578]

約数ペア:

[(1, 18816578), (2, 9408289), (11, 1710598), (22, 855299), (131, 143638), (262, 71819), (1441, 13058), (2882, 6529)]