201721121

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{383}}^1\times {\mathrm{1123}}^1$

素因数の和:1580

約数の個数: 16

約数和(自身を含む): 234799104

約数和(自身を除く): 33077983

約数列:

[1, 7, 67, 383, 469, 1123, 2681, 7861, 25661, 75241, 179627, 430109, 526687, 3010763, 28817303, 201721121]

約数ペア:

[(1, 201721121), (7, 28817303), (67, 3010763), (383, 526687), (469, 430109), (1123, 179627), (2681, 75241), (7861, 25661)]