221570907

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{83}}^2\times {\mathrm{151}}^1$

素因数の和:391

約数の個数: 24

約数和(自身を含む): 305250048

約数和(自身を除く): 83679141

約数列:

[1, 3, 71, 83, 151, 213, 249, 453, 5893, 6889, 10721, 12533, 17679, 20667, 32163, 37599, 489119, 889843, 1040239, 1467357, 2669529, 3120717, 73856969, 221570907]

約数ペア:

[(1, 221570907), (3, 73856969), (71, 3120717), (83, 2669529), (151, 1467357), (213, 1040239), (249, 889843), (453, 489119), (5893, 37599), (6889, 32163), (10721, 20667), (12533, 17679)]