2155986

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:327

約数の個数: 48

約数和(自身を含む): 5436288

約数和(自身を除く): 3280302

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 71, 126, 142, 213, 241, 426, 482, 497, 639, 723, 994, 1278, 1446, 1491, 1687, 2169, 2982, 3374, 4338, 4473, 5061, 8946, 10122, 15183, 17111, 30366, 34222, 51333, 102666, 119777, 153999, 239554, 307998, 359331, 718662, 1077993, 2155986]

約数ペア:

[(1, 2155986), (2, 1077993), (3, 718662), (6, 359331), (7, 307998), (9, 239554), (14, 153999), (18, 119777), (21, 102666), (42, 51333), (63, 34222), (71, 30366), (126, 17111), (142, 15183), (213, 10122), (241, 8946), (426, 5061), (482, 4473), (497, 4338), (639, 3374), (723, 2982), (994, 2169), (1278, 1687), (1446, 1491)]