209351311

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{103}}^1\times {\mathrm{541}}^1$

素因数の和:691

約数の個数: 24

約数和(自身を含む): 242269664

約数和(自身を除く): 32918353

約数列:

[1, 13, 17, 103, 221, 289, 541, 1339, 1751, 3757, 7033, 9197, 22763, 29767, 55723, 119561, 156349, 386971, 724399, 947291, 2032537, 12314783, 16103947, 209351311]

約数ペア:

[(1, 209351311), (13, 16103947), (17, 12314783), (103, 2032537), (221, 947291), (289, 724399), (541, 386971), (1339, 156349), (1751, 119561), (3757, 55723), (7033, 29767), (9197, 22763)]