21404295

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3931}}^1$

素因数の和:3964

約数の個数: 36

約数和(自身を含む): 40790568

約数和(自身を除く): 19386273

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 121, 165, 363, 495, 605, 1089, 1815, 3931, 5445, 11793, 19655, 35379, 43241, 58965, 129723, 176895, 216205, 389169, 475651, 648615, 1426953, 1945845, 2378255, 4280859, 7134765, 21404295]

約数ペア:

[(1, 21404295), (3, 7134765), (5, 4280859), (9, 2378255), (11, 1945845), (15, 1426953), (33, 648615), (45, 475651), (55, 389169), (99, 216205), (121, 176895), (165, 129723), (363, 58965), (495, 43241), (605, 35379), (1089, 19655), (1815, 11793), (3931, 5445)]