20760789

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{811}}^1$

素因数の和:897

約数の個数: 32

約数和(自身を含む): 33675264

約数和(自身を除く): 12914475

約数列:

[1, 3, 7, 21, 23, 53, 69, 159, 161, 371, 483, 811, 1113, 1219, 2433, 3657, 5677, 8533, 17031, 18653, 25599, 42983, 55959, 128949, 130571, 300881, 391713, 902643, 988609, 2965827, 6920263, 20760789]

約数ペア:

[(1, 20760789), (3, 6920263), (7, 2965827), (21, 988609), (23, 902643), (53, 391713), (69, 300881), (159, 130571), (161, 128949), (371, 55959), (483, 42983), (811, 25599), (1113, 18653), (1219, 17031), (2433, 8533), (3657, 5677)]