21839985

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28549}}^1$

素因数の和:28577

約数の個数: 24

約数和(自身を含む): 40084200

約数和(自身を除く): 18244215

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 28549, 85647, 142745, 256941, 428235, 485333, 1284705, 1455999, 2426665, 4367997, 7279995, 21839985]

約数ペア:

[(1, 21839985), (3, 7279995), (5, 4367997), (9, 2426665), (15, 1455999), (17, 1284705), (45, 485333), (51, 428235), (85, 256941), (153, 142745), (255, 85647), (765, 28549)]