21104447

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{4733}}^1$

素因数の和:4767

約数の個数: 16

約数和(自身を含む): 26510400

約数和(自身を除く): 5405953

約数列:

[1, 7, 13, 49, 91, 343, 637, 4459, 4733, 33131, 61529, 231917, 430703, 1623419, 3014921, 21104447]

約数ペア:

[(1, 21104447), (7, 3014921), (13, 1623419), (49, 430703), (91, 231917), (343, 61529), (637, 33131), (4459, 4733)]