20880843

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{1031}}^1$

素因数の和:1234

約数の個数: 16

約数和(自身を含む): 28697856

約数和(自身を除く): 7817013

約数列:

[1, 3, 43, 129, 157, 471, 1031, 3093, 6751, 20253, 44333, 132999, 161867, 485601, 6960281, 20880843]

約数ペア:

[(1, 20880843), (3, 6960281), (43, 485601), (129, 161867), (157, 132999), (471, 44333), (1031, 20253), (3093, 6751)]