20512854

素因数分解:

$2^1\times 3^2\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{233}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 45922032

約数和(自身を除く): 25409178

約数列:

[1, 2, 3, 6, 9, 18, 67, 73, 134, 146, 201, 219, 233, 402, 438, 466, 603, 657, 699, 1206, 1314, 1398, 2097, 4194, 4891, 9782, 14673, 15611, 17009, 29346, 31222, 34018, 44019, 46833, 51027, 88038, 93666, 102054, 140499, 153081, 280998, 306162, 1139603, 2279206, 3418809, 6837618, 10256427, 20512854]

約数ペア:

[(1, 20512854), (2, 10256427), (3, 6837618), (6, 3418809), (9, 2279206), (18, 1139603), (67, 306162), (73, 280998), (134, 153081), (146, 140499), (201, 102054), (219, 93666), (233, 88038), (402, 51027), (438, 46833), (466, 44019), (603, 34018), (657, 31222), (699, 29346), (1206, 17009), (1314, 15611), (1398, 14673), (2097, 9782), (4194, 4891)]