156905007

素因数分解:

$3^1\times 7^3\times {\mathrm{139}}^1\times {\mathrm{1097}}^1$

素因数の和:1260

約数の個数: 32

約数和(自身を含む): 245952000

約数和(自身を除く): 89046993

約数列:

[1, 3, 7, 21, 49, 139, 147, 343, 417, 973, 1029, 1097, 2919, 3291, 6811, 7679, 20433, 23037, 47677, 53753, 143031, 152483, 161259, 376271, 457449, 1067381, 1128813, 3202143, 7471667, 22415001, 52301669, 156905007]

約数ペア:

[(1, 156905007), (3, 52301669), (7, 22415001), (21, 7471667), (49, 3202143), (139, 1128813), (147, 1067381), (343, 457449), (417, 376271), (973, 161259), (1029, 152483), (1097, 143031), (2919, 53753), (3291, 47677), (6811, 23037), (7679, 20433)]