18539003391

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{887}}^1\times {\mathrm{3041}}^1$

素因数の和:4039

約数の個数: 32

約数和(自身を含む): 25932441600

約数和(自身を除く): 7393438209

約数列:

[1, 3, 29, 79, 87, 237, 887, 2291, 2661, 3041, 6873, 9123, 25723, 70073, 77169, 88189, 210219, 240239, 264567, 720717, 2032117, 2697367, 6096351, 6966931, 8092101, 20900793, 78223643, 213091993, 234670929, 639275979, 6179667797, 18539003391]

約数ペア:

[(1, 18539003391), (3, 6179667797), (29, 639275979), (79, 234670929), (87, 213091993), (237, 78223643), (887, 20900793), (2291, 8092101), (2661, 6966931), (3041, 6096351), (6873, 2697367), (9123, 2032117), (25723, 720717), (70073, 264567), (77169, 240239), (88189, 210219)]