21930573

素因数分解:

$3^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{2423}}^1$

素因数の和:2864

約数の個数: 16

約数和(自身を含む): 33509376

約数和(自身を除く): 11578803

約数列:

[1, 3, 7, 21, 431, 1293, 2423, 3017, 7269, 9051, 16961, 50883, 1044313, 3132939, 7310191, 21930573]

約数ペア:

[(1, 21930573), (3, 7310191), (7, 3132939), (21, 1044313), (431, 50883), (1293, 16961), (2423, 9051), (3017, 7269)]