18416385

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31481}}^1$

素因数の和:31505

約数の個数: 24

約数和(自身を含む): 34378344

約数和(自身を除く): 15961959

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 31481, 94443, 157405, 283329, 409253, 472215, 1227759, 1416645, 2046265, 3683277, 6138795, 18416385]

約数ペア:

[(1, 18416385), (3, 6138795), (5, 3683277), (9, 2046265), (13, 1416645), (15, 1227759), (39, 472215), (45, 409253), (65, 283329), (117, 157405), (195, 94443), (585, 31481)]