21279582

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1447}}^1$

素因数の和:1517

約数の個数: 48

約数和(自身を含む): 49695360

約数和(自身を除く): 28415778

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 43, 57, 86, 114, 129, 171, 258, 342, 387, 774, 817, 1447, 1634, 2451, 2894, 4341, 4902, 7353, 8682, 13023, 14706, 26046, 27493, 54986, 62221, 82479, 124442, 164958, 186663, 247437, 373326, 494874, 559989, 1119978, 1182199, 2364398, 3546597, 7093194, 10639791, 21279582]

約数ペア:

[(1, 21279582), (2, 10639791), (3, 7093194), (6, 3546597), (9, 2364398), (18, 1182199), (19, 1119978), (38, 559989), (43, 494874), (57, 373326), (86, 247437), (114, 186663), (129, 164958), (171, 124442), (258, 82479), (342, 62221), (387, 54986), (774, 27493), (817, 26046), (1447, 14706), (1634, 13023), (2451, 8682), (2894, 7353), (4341, 4902)]