21580104

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1$

素因数の和:311

約数の個数: 128

約数和(自身を含む): 68302080

約数和(自身を除く): 46721976

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 41, 42, 52, 56, 78, 82, 84, 91, 104, 123, 156, 164, 168, 182, 241, 246, 273, 287, 312, 328, 364, 482, 492, 533, 546, 574, 723, 728, 861, 964, 984, 1066, 1092, 1148, 1446, 1599, 1687, 1722, 1928, 2132, 2184, 2296, 2892, 3133, 3198, 3374, 3444, 3731, 4264, 5061, 5784, 6266, 6396, 6748, 6888, 7462, 9399, 9881, 10122, 11193, 12532, 12792, 13496, 14924, 18798, 19762, 20244, 21931, 22386, 25064, 29643, 29848, 37596, 39524, 40488, 43862, 44772, 59286, 65793, 69167, 75192, 79048, 87724, 89544, 118572, 128453, 131586, 138334, 175448, 207501, 237144, 256906, 263172, 276668, 385359, 415002, 513812, 526344, 553336, 770718, 830004, 899171, 1027624, 1541436, 1660008, 1798342, 2697513, 3082872, 3596684, 5395026, 7193368, 10790052, 21580104]

約数ペア:

[(1, 21580104), (2, 10790052), (3, 7193368), (4, 5395026), (6, 3596684), (7, 3082872), (8, 2697513), (12, 1798342), (13, 1660008), (14, 1541436), (21, 1027624), (24, 899171), (26, 830004), (28, 770718), (39, 553336), (41, 526344), (42, 513812), (52, 415002), (56, 385359), (78, 276668), (82, 263172), (84, 256906), (91, 237144), (104, 207501), (123, 175448), (156, 138334), (164, 131586), (168, 128453), (182, 118572), (241, 89544), (246, 87724), (273, 79048), (287, 75192), (312, 69167), (328, 65793), (364, 59286), (482, 44772), (492, 43862), (533, 40488), (546, 39524), (574, 37596), (723, 29848), (728, 29643), (861, 25064), (964, 22386), (984, 21931), (1066, 20244), (1092, 19762), (1148, 18798), (1446, 14924), (1599, 13496), (1687, 12792), (1722, 12532), (1928, 11193), (2132, 10122), (2184, 9881), (2296, 9399), (2892, 7462), (3133, 6888), (3198, 6748), (3374, 6396), (3444, 6266), (3731, 5784), (4264, 5061)]