28194621

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{743}}^1$

素因数の和:905

約数の個数: 32

約数和(自身を含む): 46663680

約数和(自身を除く): 18469059

約数列:

[1, 3, 7, 13, 21, 39, 91, 139, 273, 417, 743, 973, 1807, 2229, 2919, 5201, 5421, 9659, 12649, 15603, 28977, 37947, 67613, 103277, 202839, 309831, 722939, 1342601, 2168817, 4027803, 9398207, 28194621]

約数ペア:

[(1, 28194621), (3, 9398207), (7, 4027803), (13, 2168817), (21, 1342601), (39, 722939), (91, 309831), (139, 202839), (273, 103277), (417, 67613), (743, 37947), (973, 28977), (1807, 15603), (2229, 12649), (2919, 9659), (5201, 5421)]