28027818

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:340

約数の個数: 96

約数和(自身を含む): 76108032

約数和(自身を除く): 48080214

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 71, 78, 91, 117, 126, 142, 182, 213, 234, 241, 273, 426, 482, 497, 546, 639, 723, 819, 923, 994, 1278, 1446, 1491, 1638, 1687, 1846, 2169, 2769, 2982, 3133, 3374, 4338, 4473, 5061, 5538, 6266, 6461, 8307, 8946, 9399, 10122, 12922, 15183, 16614, 17111, 18798, 19383, 21931, 28197, 30366, 34222, 38766, 43862, 51333, 56394, 58149, 65793, 102666, 116298, 119777, 131586, 153999, 197379, 222443, 239554, 307998, 359331, 394758, 444886, 667329, 718662, 1077993, 1334658, 1557101, 2001987, 2155986, 3114202, 4003974, 4671303, 9342606, 14013909, 28027818]

約数ペア:

[(1, 28027818), (2, 14013909), (3, 9342606), (6, 4671303), (7, 4003974), (9, 3114202), (13, 2155986), (14, 2001987), (18, 1557101), (21, 1334658), (26, 1077993), (39, 718662), (42, 667329), (63, 444886), (71, 394758), (78, 359331), (91, 307998), (117, 239554), (126, 222443), (142, 197379), (182, 153999), (213, 131586), (234, 119777), (241, 116298), (273, 102666), (426, 65793), (482, 58149), (497, 56394), (546, 51333), (639, 43862), (723, 38766), (819, 34222), (923, 30366), (994, 28197), (1278, 21931), (1446, 19383), (1491, 18798), (1638, 17111), (1687, 16614), (1846, 15183), (2169, 12922), (2769, 10122), (2982, 9399), (3133, 8946), (3374, 8307), (4338, 6461), (4473, 6266), (5061, 5538)]