266771687

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{647}}^1$

素因数の和:887

約数の個数: 32

約数和(自身を含む): 344881152

約数和(自身を除く): 78109465

約数列:

[1, 7, 13, 23, 91, 161, 197, 299, 647, 1379, 2093, 2561, 4529, 4531, 8411, 14881, 17927, 31717, 58877, 58903, 104167, 127459, 193453, 412321, 892213, 1354171, 1656967, 2931557, 11598769, 20520899, 38110241, 266771687]

約数ペア:

[(1, 266771687), (7, 38110241), (13, 20520899), (23, 11598769), (91, 2931557), (161, 1656967), (197, 1354171), (299, 892213), (647, 412321), (1379, 193453), (2093, 127459), (2561, 104167), (4529, 58903), (4531, 58877), (8411, 31717), (14881, 17927)]