890236998

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{23473}}^1$

素因数の和:23538

約数の個数: 72

約数和(自身を含む): 2296038888

約数和(自身を除く): 1405801890

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 43, 49, 63, 86, 98, 126, 129, 147, 258, 294, 301, 387, 441, 602, 774, 882, 903, 1806, 2107, 2709, 4214, 5418, 6321, 12642, 18963, 23473, 37926, 46946, 70419, 140838, 164311, 211257, 328622, 422514, 492933, 985866, 1009339, 1150177, 1478799, 2018678, 2300354, 2957598, 3028017, 3450531, 6056034, 6901062, 7065373, 9084051, 10351593, 14130746, 18168102, 20703186, 21196119, 42392238, 49457611, 63588357, 98915222, 127176714, 148372833, 296745666, 445118499, 890236998]

約数ペア:

[(1, 890236998), (2, 445118499), (3, 296745666), (6, 148372833), (7, 127176714), (9, 98915222), (14, 63588357), (18, 49457611), (21, 42392238), (42, 21196119), (43, 20703186), (49, 18168102), (63, 14130746), (86, 10351593), (98, 9084051), (126, 7065373), (129, 6901062), (147, 6056034), (258, 3450531), (294, 3028017), (301, 2957598), (387, 2300354), (441, 2018678), (602, 1478799), (774, 1150177), (882, 1009339), (903, 985866), (1806, 492933), (2107, 422514), (2709, 328622), (4214, 211257), (5418, 164311), (6321, 140838), (12642, 70419), (18963, 46946), (23473, 37926)]