28902013

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{359}}^1$

素因数の和:457

約数の個数: 24

約数和(自身を含む): 35458560

約数和(自身を除く): 6556547

約数列:

[1, 7, 31, 49, 53, 217, 359, 371, 1519, 1643, 2513, 2597, 11129, 11501, 17591, 19027, 77903, 80507, 133189, 545321, 589837, 932323, 4128859, 28902013]

約数ペア:

[(1, 28902013), (7, 4128859), (31, 932323), (49, 589837), (53, 545321), (217, 133189), (359, 80507), (371, 77903), (1519, 19027), (1643, 17591), (2513, 11501), (2597, 11129)]