20449814

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{241}}^1$

素因数の和:309

約数の個数: 64

約数和(自身を含む): 41817600

約数和(自身を除く): 21367786

約数列:

[1, 2, 7, 11, 14, 19, 22, 29, 38, 58, 77, 133, 154, 203, 209, 241, 266, 319, 406, 418, 482, 551, 638, 1102, 1463, 1687, 2233, 2651, 2926, 3374, 3857, 4466, 4579, 5302, 6061, 6989, 7714, 9158, 12122, 13978, 18557, 32053, 37114, 42427, 48923, 50369, 64106, 76879, 84854, 97846, 100738, 132791, 153758, 265582, 352583, 538153, 705166, 929537, 1076306, 1460701, 1859074, 2921402, 10224907, 20449814]

約数ペア:

[(1, 20449814), (2, 10224907), (7, 2921402), (11, 1859074), (14, 1460701), (19, 1076306), (22, 929537), (29, 705166), (38, 538153), (58, 352583), (77, 265582), (133, 153758), (154, 132791), (203, 100738), (209, 97846), (241, 84854), (266, 76879), (319, 64106), (406, 50369), (418, 48923), (482, 42427), (551, 37114), (638, 32053), (1102, 18557), (1463, 13978), (1687, 12122), (2233, 9158), (2651, 7714), (2926, 6989), (3374, 6061), (3857, 5302), (4466, 4579)]