28508753

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{257}}^1$

素因数の和:353

約数の個数: 32

約数和(自身を含む): 37449216

約数和(自身を除く): 8940463

約数列:

[1, 7, 13, 23, 53, 91, 161, 257, 299, 371, 689, 1219, 1799, 2093, 3341, 4823, 5911, 8533, 13621, 15847, 23387, 41377, 76843, 95347, 110929, 177073, 313283, 537901, 1239511, 2192981, 4072679, 28508753]

約数ペア:

[(1, 28508753), (7, 4072679), (13, 2192981), (23, 1239511), (53, 537901), (91, 313283), (161, 177073), (257, 110929), (299, 95347), (371, 76843), (689, 41377), (1219, 23387), (1799, 15847), (2093, 13621), (3341, 8533), (4823, 5911)]