212424261

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{20353}}^1$

素因数の和:20441

約数の個数: 24

約数和(自身を含む): 334131264

約数和(自身を除く): 121707003

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 497, 1491, 3479, 10437, 20353, 61059, 142471, 427413, 997297, 1445063, 2991891, 4335189, 10115441, 30346323, 70808087, 212424261]

約数ペア:

[(1, 212424261), (3, 70808087), (7, 30346323), (21, 10115441), (49, 4335189), (71, 2991891), (147, 1445063), (213, 997297), (497, 427413), (1491, 142471), (3479, 61059), (10437, 20353)]