18009805

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{619}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 24685920

約数和(自身を除く): 6676115

約数列:

[1, 5, 11, 23, 55, 115, 253, 529, 619, 1265, 2645, 3095, 5819, 6809, 14237, 29095, 34045, 71185, 156607, 327451, 783035, 1637255, 3601961, 18009805]

約数ペア:

[(1, 18009805), (5, 3601961), (11, 1637255), (23, 783035), (55, 327451), (115, 156607), (253, 71185), (529, 34045), (619, 29095), (1265, 14237), (2645, 6809), (3095, 5819)]