20860155

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6529}}^1$

素因数の和:6611

約数の個数: 24

約数和(自身を含む): 36672480

約数和(自身を除く): 15812325

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 6529, 19587, 32645, 58761, 97935, 293805, 463559, 1390677, 2317795, 4172031, 6953385, 20860155]

約数ペア:

[(1, 20860155), (3, 6953385), (5, 4172031), (9, 2317795), (15, 1390677), (45, 463559), (71, 293805), (213, 97935), (355, 58761), (639, 32645), (1065, 19587), (3195, 6529)]