21788415

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44017}}^1$

素因数の和:44039

約数の個数: 24

約数和(自身を含む): 41200848

約数和(自身を除く): 19412433

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 44017, 132051, 220085, 396153, 484187, 660255, 1452561, 1980765, 2420935, 4357683, 7262805, 21788415]

約数ペア:

[(1, 21788415), (3, 7262805), (5, 4357683), (9, 2420935), (11, 1980765), (15, 1452561), (33, 660255), (45, 484187), (55, 396153), (99, 220085), (165, 132051), (495, 44017)]