12181939

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{233}}^1$

素因数の和:355

約数の個数: 24

約数和(自身を含む): 15685488

約数和(自身を除く): 3503549

約数列:

[1, 7, 11, 49, 77, 97, 233, 539, 679, 1067, 1631, 2563, 4753, 7469, 11417, 17941, 22601, 52283, 125587, 158207, 248611, 1107449, 1740277, 12181939]

約数ペア:

[(1, 12181939), (7, 1740277), (11, 1107449), (49, 248611), (77, 158207), (97, 125587), (233, 52283), (539, 22601), (679, 17941), (1067, 11417), (1631, 7469), (2563, 4753)]