138520837

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 176569344

約数和(自身を除く): 38048507

約数列:

[1, 7, 13, 41, 91, 137, 271, 287, 533, 959, 1781, 1897, 3523, 3731, 5617, 11111, 12467, 24661, 37127, 39319, 73021, 77777, 144443, 259889, 482651, 511147, 1011101, 1522207, 3378557, 10655449, 19788691, 138520837]

約数ペア:

[(1, 138520837), (7, 19788691), (13, 10655449), (41, 3378557), (91, 1522207), (137, 1011101), (271, 511147), (287, 482651), (533, 259889), (959, 144443), (1781, 77777), (1897, 73021), (3523, 39319), (3731, 37127), (5617, 24661), (11111, 12467)]