21165313

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{997}}^1$

素因数の和:1104

約数の個数: 16

約数和(自身を含む): 24143616

約数和(自身を除く): 2978303

約数列:

[1, 13, 23, 71, 299, 923, 997, 1633, 12961, 21229, 22931, 70787, 298103, 920231, 1628101, 21165313]

約数ペア:

[(1, 21165313), (13, 1628101), (23, 920231), (71, 298103), (299, 70787), (923, 22931), (997, 21229), (1633, 12961)]