20341287

素因数分解:

$3^7\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:223

約数の個数: 32

約数和(自身を含む): 31173120

約数和(自身を除く): 10831833

約数列:

[1, 3, 9, 27, 71, 81, 131, 213, 243, 393, 639, 729, 1179, 1917, 2187, 3537, 5751, 9301, 10611, 17253, 27903, 31833, 51759, 83709, 95499, 155277, 251127, 286497, 753381, 2260143, 6780429, 20341287]

約数ペア:

[(1, 20341287), (3, 6780429), (9, 2260143), (27, 753381), (71, 286497), (81, 251127), (131, 155277), (213, 95499), (243, 83709), (393, 51759), (639, 31833), (729, 27903), (1179, 17253), (1917, 10611), (2187, 9301), (3537, 5751)]