21393294

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{3863}}^1$

素因数の和:3952

約数の個数: 32

約数和(自身を含む): 46738944

約数和(自身を除く): 25345650

約数列:

[1, 2, 3, 6, 13, 26, 39, 71, 78, 142, 213, 426, 923, 1846, 2769, 3863, 5538, 7726, 11589, 23178, 50219, 100438, 150657, 274273, 301314, 548546, 822819, 1645638, 3565549, 7131098, 10696647, 21393294]

約数ペア:

[(1, 21393294), (2, 10696647), (3, 7131098), (6, 3565549), (13, 1645638), (26, 822819), (39, 548546), (71, 301314), (78, 274273), (142, 150657), (213, 100438), (426, 50219), (923, 23178), (1846, 11589), (2769, 7726), (3863, 5538)]