20163474

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:399

約数の個数: 48

約数和(自身を含む): 45302400

約数和(自身を除く): 25138926

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 109, 129, 218, 239, 258, 327, 387, 478, 654, 717, 774, 981, 1434, 1962, 2151, 4302, 4687, 9374, 10277, 14061, 20554, 26051, 28122, 30831, 42183, 52102, 61662, 78153, 84366, 92493, 156306, 184986, 234459, 468918, 1120193, 2240386, 3360579, 6721158, 10081737, 20163474]

約数ペア:

[(1, 20163474), (2, 10081737), (3, 6721158), (6, 3360579), (9, 2240386), (18, 1120193), (43, 468918), (86, 234459), (109, 184986), (129, 156306), (218, 92493), (239, 84366), (258, 78153), (327, 61662), (387, 52102), (478, 42183), (654, 30831), (717, 28122), (774, 26051), (981, 20554), (1434, 14061), (1962, 10277), (2151, 9374), (4302, 4687)]