19920481

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:313

約数の個数: 24

約数和(自身を含む): 24854720

約数和(自身を除く): 4934239

約数列:

[1, 7, 17, 43, 119, 229, 289, 301, 731, 1603, 2023, 3893, 5117, 9847, 12427, 27251, 66181, 68929, 86989, 167399, 463267, 1171793, 2845783, 19920481]

約数ペア:

[(1, 19920481), (7, 2845783), (17, 1171793), (43, 463267), (119, 167399), (229, 86989), (289, 68929), (301, 66181), (731, 27251), (1603, 12427), (2023, 9847), (3893, 5117)]