20794972

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{379}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 42134400

約数和(自身を除く): 21339428

約数列:

[1, 2, 4, 11, 22, 29, 43, 44, 58, 86, 116, 172, 319, 379, 473, 638, 758, 946, 1247, 1276, 1516, 1892, 2494, 4169, 4988, 8338, 10991, 13717, 16297, 16676, 21982, 27434, 32594, 43964, 54868, 65188, 120901, 179267, 241802, 358534, 472613, 483604, 717068, 945226, 1890452, 5198743, 10397486, 20794972]

約数ペア:

[(1, 20794972), (2, 10397486), (4, 5198743), (11, 1890452), (22, 945226), (29, 717068), (43, 483604), (44, 472613), (58, 358534), (86, 241802), (116, 179267), (172, 120901), (319, 65188), (379, 54868), (473, 43964), (638, 32594), (758, 27434), (946, 21982), (1247, 16676), (1276, 16297), (1516, 13717), (1892, 10991), (2494, 8338), (4169, 4988)]