20013539

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{761}}^1$

素因数の和:815

約数の個数: 24

約数和(自身を含む): 26200608

約数和(自身を除く): 6187069

約数列:

[1, 7, 13, 17, 91, 119, 221, 289, 761, 1547, 2023, 3757, 5327, 9893, 12937, 26299, 69251, 90559, 168181, 219929, 1177267, 1539503, 2859077, 20013539]

約数ペア:

[(1, 20013539), (7, 2859077), (13, 1539503), (17, 1177267), (91, 219929), (119, 168181), (221, 90559), (289, 69251), (761, 26299), (1547, 12937), (2023, 9893), (3757, 5327)]