51736321

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{631}}^1$

素因数の和:721

約数の個数: 32

約数和(自身を含む): 68802048

約数和(自身を除く): 17065727

約数列:

[1, 7, 13, 17, 53, 91, 119, 221, 371, 631, 689, 901, 1547, 4417, 4823, 6307, 8203, 10727, 11713, 33443, 57421, 75089, 81991, 139451, 234101, 434759, 568531, 976157, 3043313, 3979717, 7390903, 51736321]

約数ペア:

[(1, 51736321), (7, 7390903), (13, 3979717), (17, 3043313), (53, 976157), (91, 568531), (119, 434759), (221, 234101), (371, 139451), (631, 81991), (689, 75089), (901, 57421), (1547, 33443), (4417, 11713), (4823, 10727), (6307, 8203)]