213917249

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{293}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 270273024

約数和(自身を除く): 56355775

約数列:

[1, 7, 13, 71, 91, 113, 293, 497, 791, 923, 1469, 2051, 3809, 6461, 8023, 10283, 20803, 26663, 33109, 56161, 104299, 145621, 231763, 270439, 430417, 730093, 1893073, 2350739, 3012919, 16455173, 30559607, 213917249]

約数ペア:

[(1, 213917249), (7, 30559607), (13, 16455173), (71, 3012919), (91, 2350739), (113, 1893073), (293, 730093), (497, 430417), (791, 270439), (923, 231763), (1469, 145621), (2051, 104299), (3809, 56161), (6461, 33109), (8023, 26663), (10283, 20803)]