21492315

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36739}}^1$

素因数の和:36763

約数の個数: 24

約数和(自身を含む): 40120080

約数和(自身を除く): 18627765

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 36739, 110217, 183695, 330651, 477607, 551085, 1432821, 1653255, 2388035, 4298463, 7164105, 21492315]

約数ペア:

[(1, 21492315), (3, 7164105), (5, 4298463), (9, 2388035), (13, 1653255), (15, 1432821), (39, 551085), (45, 477607), (65, 330651), (117, 183695), (195, 110217), (585, 36739)]