21704613

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{19501}}^1$

素因数の和:19564

約数の個数: 16

約数和(自身を含む): 33699456

約数和(自身を除く): 11994843

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 19501, 58503, 136507, 409521, 1033553, 3100659, 7234871, 21704613]

約数ペア:

[(1, 21704613), (3, 7234871), (7, 3100659), (21, 1033553), (53, 409521), (159, 136507), (371, 58503), (1113, 19501)]