21177754

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{2417}}^1$

素因数の和:2769

約数の個数: 16

約数和(自身を含む): 34325928

約数和(自身を除く): 13148174

約数列:

[1, 2, 13, 26, 337, 674, 2417, 4381, 4834, 8762, 31421, 62842, 814529, 1629058, 10588877, 21177754]

約数ペア:

[(1, 21177754), (2, 10588877), (13, 1629058), (26, 814529), (337, 62842), (674, 31421), (2417, 8762), (4381, 4834)]