201820591

素因数分解:

$7^1\times {\mathrm{137}}^1\times {\mathrm{389}}^1\times {\mathrm{541}}^1$

素因数の和:1074

約数の個数: 16

約数和(自身を含む): 233363520

約数和(自身を除く): 31542929

約数列:

[1, 7, 137, 389, 541, 959, 2723, 3787, 53293, 74117, 210449, 373051, 518819, 1473143, 28831513, 201820591]

約数ペア:

[(1, 201820591), (7, 28831513), (137, 1473143), (389, 518819), (541, 373051), (959, 210449), (2723, 74117), (3787, 53293)]