20525817

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{373}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 31667328

約数和(自身を除く): 11141511

約数列:

[1, 3, 13, 17, 39, 51, 83, 221, 249, 373, 663, 1079, 1119, 1411, 3237, 4233, 4849, 6341, 14547, 18343, 19023, 30959, 55029, 82433, 92877, 247299, 402467, 526303, 1207401, 1578909, 6841939, 20525817]

約数ペア:

[(1, 20525817), (3, 6841939), (13, 1578909), (17, 1207401), (39, 526303), (51, 402467), (83, 247299), (221, 92877), (249, 82433), (373, 55029), (663, 30959), (1079, 19023), (1119, 18343), (1411, 14547), (3237, 6341), (4233, 4849)]