214908775

素因数分解:

$5^2\times {\mathrm{131}}^1\times {\mathrm{211}}^1\times {\mathrm{311}}^1$

素因数の和:663

約数の個数: 24

約数和(自身を含む): 270661248

約数和(自身を除く): 55752473

約数列:

[1, 5, 25, 131, 211, 311, 655, 1055, 1555, 3275, 5275, 7775, 27641, 40741, 65621, 138205, 203705, 328105, 691025, 1018525, 1640525, 8596351, 42981755, 214908775]

約数ペア:

[(1, 214908775), (5, 42981755), (25, 8596351), (131, 1640525), (211, 1018525), (311, 691025), (655, 328105), (1055, 203705), (1555, 138205), (3275, 65621), (5275, 40741), (7775, 27641)]