20464947

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{17627}}^1$

素因数の和:17679

約数の個数: 16

約数和(自身を含む): 31025280

約数和(自身を除く): 10560333

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 17627, 52881, 158643, 475929, 757961, 2273883, 6821649, 20464947]

約数ペア:

[(1, 20464947), (3, 6821649), (9, 2273883), (27, 757961), (43, 475929), (129, 158643), (387, 52881), (1161, 17627)]