20825679

素因数分解:

$3^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{5479}}^1$

素因数の和:5670

約数の個数: 16

約数和(自身を含む): 31915520

約数和(自身を除く): 11089841

約数列:

[1, 3, 7, 21, 181, 543, 1267, 3801, 5479, 16437, 38353, 115059, 991699, 2975097, 6941893, 20825679]

約数ペア:

[(1, 20825679), (3, 6941893), (7, 2975097), (21, 991699), (181, 115059), (543, 38353), (1267, 16437), (3801, 5479)]