20906685

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27329}}^1$

素因数の和:27357

約数の個数: 24

約数和(自身を含む): 38371320

約数和(自身を除く): 17464635

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 27329, 81987, 136645, 245961, 409935, 464593, 1229805, 1393779, 2322965, 4181337, 6968895, 20906685]

約数ペア:

[(1, 20906685), (3, 6968895), (5, 4181337), (9, 2322965), (15, 1393779), (17, 1229805), (45, 464593), (51, 409935), (85, 245961), (153, 136645), (255, 81987), (765, 27329)]