209891591

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{907}}^1\times {\mathrm{2543}}^1$

素因数の和:3470

約数の個数: 16

約数和(自身を含む): 258714624

約数和(自身を除く): 48823033

約数列:

[1, 7, 13, 91, 907, 2543, 6349, 11791, 17801, 33059, 82537, 231413, 2306501, 16145507, 29984513, 209891591]

約数ペア:

[(1, 209891591), (7, 29984513), (13, 16145507), (91, 2306501), (907, 231413), (2543, 82537), (6349, 33059), (11791, 17801)]