20771569

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{463}}^1$

素因数の和:529

約数の個数: 32

約数和(自身を含む): 28062720

約数和(自身を除く): 7291151

約数列:

[1, 7, 13, 17, 29, 91, 119, 203, 221, 377, 463, 493, 1547, 2639, 3241, 3451, 6019, 6409, 7871, 13427, 42133, 44863, 55097, 93989, 102323, 174551, 228259, 716261, 1221857, 1597813, 2967367, 20771569]

約数ペア:

[(1, 20771569), (7, 2967367), (13, 1597813), (17, 1221857), (29, 716261), (91, 228259), (119, 174551), (203, 102323), (221, 93989), (377, 55097), (463, 44863), (493, 42133), (1547, 13427), (2639, 7871), (3241, 6409), (3451, 6019)]