21310245

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43051}}^1$

素因数の和:43073

約数の個数: 24

約数和(自身を含む): 40296672

約数和(自身を除く): 18986427

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 43051, 129153, 215255, 387459, 473561, 645765, 1420683, 1937295, 2367805, 4262049, 7103415, 21310245]

約数ペア:

[(1, 21310245), (3, 7103415), (5, 4262049), (9, 2367805), (11, 1937295), (15, 1420683), (33, 645765), (45, 473561), (55, 387459), (99, 215255), (165, 129153), (495, 43051)]