21169857

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{5231}}^1$

素因数の和:5324

約数の個数: 16

約数和(自身を含む): 30136320

約数和(自身を除く): 8966463

約数列:

[1, 3, 19, 57, 71, 213, 1349, 4047, 5231, 15693, 99389, 298167, 371401, 1114203, 7056619, 21169857]

約数ペア:

[(1, 21169857), (3, 7056619), (19, 1114203), (57, 371401), (71, 298167), (213, 99389), (1349, 15693), (4047, 5231)]