209715121

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{1559}}^1\times {\mathrm{1747}}^1$

素因数の和:3324

約数の個数: 16

約数和(自身を含む): 261780480

約数和(自身を除く): 52065359

約数列:

[1, 7, 11, 77, 1559, 1747, 10913, 12229, 17149, 19217, 120043, 134519, 2723573, 19065011, 29959303, 209715121]

約数ペア:

[(1, 209715121), (7, 29959303), (11, 19065011), (77, 2723573), (1559, 134519), (1747, 120043), (10913, 19217), (12229, 17149)]