8704458

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:232

約数の個数: 72

約数和(自身を含む): 22407840

約数和(自身を除く): 13703382

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 71, 98, 126, 139, 142, 147, 213, 278, 294, 417, 426, 441, 497, 639, 834, 882, 973, 994, 1251, 1278, 1491, 1946, 2502, 2919, 2982, 3479, 4473, 5838, 6811, 6958, 8757, 8946, 9869, 10437, 13622, 17514, 19738, 20433, 20874, 29607, 31311, 40866, 59214, 61299, 62622, 69083, 88821, 122598, 138166, 177642, 207249, 414498, 483581, 621747, 967162, 1243494, 1450743, 2901486, 4352229, 8704458]

約数ペア:

[(1, 8704458), (2, 4352229), (3, 2901486), (6, 1450743), (7, 1243494), (9, 967162), (14, 621747), (18, 483581), (21, 414498), (42, 207249), (49, 177642), (63, 138166), (71, 122598), (98, 88821), (126, 69083), (139, 62622), (142, 61299), (147, 59214), (213, 40866), (278, 31311), (294, 29607), (417, 20874), (426, 20433), (441, 19738), (497, 17514), (639, 13622), (834, 10437), (882, 9869), (973, 8946), (994, 8757), (1251, 6958), (1278, 6811), (1491, 5838), (1946, 4473), (2502, 3479), (2919, 2982)]