28499107

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{311}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 9240413

約数列:

[1, 7, 13, 19, 53, 91, 133, 247, 311, 371, 689, 1007, 1729, 2177, 4043, 4823, 5909, 7049, 13091, 16483, 28301, 41363, 76817, 91637, 115381, 214279, 313177, 537719, 1499953, 2192239, 4071301, 28499107]

約数ペア:

[(1, 28499107), (7, 4071301), (13, 2192239), (19, 1499953), (53, 537719), (91, 313177), (133, 214279), (247, 115381), (311, 91637), (371, 76817), (689, 41363), (1007, 28301), (1729, 16483), (2177, 13091), (4043, 7049), (4823, 5909)]