28317987

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{277}}^1\times {\mathrm{307}}^1$

素因数の和:627

約数の個数: 24

約数和(自身を含む): 42298256

約数和(自身を除く): 13980269

約数列:

[1, 3, 9, 37, 111, 277, 307, 333, 831, 921, 2493, 2763, 10249, 11359, 30747, 34077, 85039, 92241, 102231, 255117, 765351, 3146443, 9439329, 28317987]

約数ペア:

[(1, 28317987), (3, 9439329), (9, 3146443), (37, 765351), (111, 255117), (277, 102231), (307, 92241), (333, 85039), (831, 34077), (921, 30747), (2493, 11359), (2763, 10249)]