20533457

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1433}}^1$

素因数の和:1552

約数の個数: 16

約数和(自身を含む): 24779520

約数和(自身を除く): 4246063

約数列:

[1, 7, 23, 89, 161, 623, 1433, 2047, 10031, 14329, 32959, 127537, 230713, 892759, 2933351, 20533457]

約数ペア:

[(1, 20533457), (7, 2933351), (23, 892759), (89, 230713), (161, 127537), (623, 32959), (1433, 14329), (2047, 10031)]