211231447

素因数分解:

$7^1\times {\mathrm{29}}^2\times {\mathrm{53}}^1\times {\mathrm{677}}^1$

素因数の和:795

約数の個数: 24

約数和(自身を含む): 255112416

約数和(自身を除く): 43880969

約数列:

[1, 7, 29, 53, 203, 371, 677, 841, 1537, 4739, 5887, 10759, 19633, 35881, 44573, 137431, 251167, 312011, 569357, 1040549, 3985499, 7283843, 30175921, 211231447]

約数ペア:

[(1, 211231447), (7, 30175921), (29, 7283843), (53, 3985499), (203, 1040549), (371, 569357), (677, 312011), (841, 251167), (1537, 137431), (4739, 44573), (5887, 35881), (10759, 19633)]