20517544

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{379}}^1$

素因数の和:553

約数の個数: 32

約数和(自身を含む): 39535200

約数和(自身を除く): 19017656

約数列:

[1, 2, 4, 8, 67, 101, 134, 202, 268, 379, 404, 536, 758, 808, 1516, 3032, 6767, 13534, 25393, 27068, 38279, 50786, 54136, 76558, 101572, 153116, 203144, 306232, 2564693, 5129386, 10258772, 20517544]

約数ペア:

[(1, 20517544), (2, 10258772), (4, 5129386), (8, 2564693), (67, 306232), (101, 203144), (134, 153116), (202, 101572), (268, 76558), (379, 54136), (404, 50786), (536, 38279), (758, 27068), (808, 25393), (1516, 13534), (3032, 6767)]