20485845

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3529}}^1$

素因数の和:3586

約数の個数: 32

約数和(自身を含む): 37276800

約数和(自身を除く): 16790955

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 3529, 5805, 10587, 17645, 31761, 52935, 95283, 151747, 158805, 455241, 476415, 758735, 1365723, 2276205, 4097169, 6828615, 20485845]

約数ペア:

[(1, 20485845), (3, 6828615), (5, 4097169), (9, 2276205), (15, 1365723), (27, 758735), (43, 476415), (45, 455241), (129, 158805), (135, 151747), (215, 95283), (387, 52935), (645, 31761), (1161, 17645), (1935, 10587), (3529, 5805)]