20993170

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1373}}^1$

素因数の和:1530

約数の個数: 32

約数和(自身を含む): 41549760

約数和(自身を除く): 20556590

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 139, 278, 695, 1373, 1390, 1529, 2746, 3058, 6865, 7645, 13730, 15103, 15290, 30206, 75515, 151030, 190847, 381694, 954235, 1908470, 2099317, 4198634, 10496585, 20993170]

約数ペア:

[(1, 20993170), (2, 10496585), (5, 4198634), (10, 2099317), (11, 1908470), (22, 954235), (55, 381694), (110, 190847), (139, 151030), (278, 75515), (695, 30206), (1373, 15290), (1390, 15103), (1529, 13730), (2746, 7645), (3058, 6865)]