2638454

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:157

約数の個数: 48

約数和(自身を含む): 5266800

約数和(自身を除く): 2628346

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 49, 91, 98, 109, 133, 182, 218, 247, 266, 494, 637, 763, 931, 1274, 1417, 1526, 1729, 1862, 2071, 2834, 3458, 4142, 5341, 9919, 10682, 12103, 14497, 19838, 24206, 26923, 28994, 53846, 69433, 101479, 138866, 188461, 202958, 376922, 1319227, 2638454]

約数ペア:

[(1, 2638454), (2, 1319227), (7, 376922), (13, 202958), (14, 188461), (19, 138866), (26, 101479), (38, 69433), (49, 53846), (91, 28994), (98, 26923), (109, 24206), (133, 19838), (182, 14497), (218, 12103), (247, 10682), (266, 9919), (494, 5341), (637, 4142), (763, 3458), (931, 2834), (1274, 2071), (1417, 1862), (1526, 1729)]