18280791

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1879}}^1$

素因数の和:1955

約数の個数: 24

約数和(自身を含む): 28154880

約数和(自身を除く): 9874089

約数列:

[1, 3, 9, 23, 47, 69, 141, 207, 423, 1081, 1879, 3243, 5637, 9729, 16911, 43217, 88313, 129651, 264939, 388953, 794817, 2031199, 6093597, 18280791]

約数ペア:

[(1, 18280791), (3, 6093597), (9, 2031199), (23, 794817), (47, 388953), (69, 264939), (141, 129651), (207, 88313), (423, 43217), (1081, 16911), (1879, 9729), (3243, 5637)]