18402013

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1667}}^1$

素因数の和:1776

約数の個数: 16

約数和(自身を含む): 22417920

約数和(自身を除く): 4015907

約数列:

[1, 7, 19, 83, 133, 581, 1577, 1667, 11039, 11669, 31673, 138361, 221711, 968527, 2628859, 18402013]

約数ペア:

[(1, 18402013), (7, 2628859), (19, 968527), (83, 221711), (133, 138361), (581, 31673), (1577, 11669), (1667, 11039)]