20942376

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:295

約数の個数: 128

約数和(自身を含む): 66232320

約数和(自身を除く): 45289944

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 43, 52, 56, 78, 84, 86, 91, 104, 129, 156, 168, 172, 182, 223, 258, 273, 301, 312, 344, 364, 446, 516, 546, 559, 602, 669, 728, 892, 903, 1032, 1092, 1118, 1204, 1338, 1561, 1677, 1784, 1806, 2184, 2236, 2408, 2676, 2899, 3122, 3354, 3612, 3913, 4472, 4683, 5352, 5798, 6244, 6708, 7224, 7826, 8697, 9366, 9589, 11596, 11739, 12488, 13416, 15652, 17394, 18732, 19178, 20293, 23192, 23478, 28767, 31304, 34788, 37464, 38356, 40586, 46956, 57534, 60879, 67123, 69576, 76712, 81172, 93912, 115068, 121758, 124657, 134246, 162344, 201369, 230136, 243516, 249314, 268492, 373971, 402738, 487032, 498628, 536984, 747942, 805476, 872599, 997256, 1495884, 1610952, 1745198, 2617797, 2991768, 3490396, 5235594, 6980792, 10471188, 20942376]

約数ペア:

[(1, 20942376), (2, 10471188), (3, 6980792), (4, 5235594), (6, 3490396), (7, 2991768), (8, 2617797), (12, 1745198), (13, 1610952), (14, 1495884), (21, 997256), (24, 872599), (26, 805476), (28, 747942), (39, 536984), (42, 498628), (43, 487032), (52, 402738), (56, 373971), (78, 268492), (84, 249314), (86, 243516), (91, 230136), (104, 201369), (129, 162344), (156, 134246), (168, 124657), (172, 121758), (182, 115068), (223, 93912), (258, 81172), (273, 76712), (301, 69576), (312, 67123), (344, 60879), (364, 57534), (446, 46956), (516, 40586), (546, 38356), (559, 37464), (602, 34788), (669, 31304), (728, 28767), (892, 23478), (903, 23192), (1032, 20293), (1092, 19178), (1118, 18732), (1204, 17394), (1338, 15652), (1561, 13416), (1677, 12488), (1784, 11739), (1806, 11596), (2184, 9589), (2236, 9366), (2408, 8697), (2676, 7826), (2899, 7224), (3122, 6708), (3354, 6244), (3612, 5798), (3913, 5352), (4472, 4683)]