21372615

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43177}}^1$

素因数の和:43199

約数の個数: 24

約数和(自身を含む): 40414608

約数和(自身を除く): 19041993

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 43177, 129531, 215885, 388593, 474947, 647655, 1424841, 1942965, 2374735, 4274523, 7124205, 21372615]

約数ペア:

[(1, 21372615), (3, 7124205), (5, 4274523), (9, 2374735), (11, 1942965), (15, 1424841), (33, 647655), (45, 474947), (55, 388593), (99, 215885), (165, 129531), (495, 43177)]