21898478

素因数分解:

$2^1\times 7^1\times {\mathrm{977}}^1\times {\mathrm{1601}}^1$

素因数の和:2587

約数の個数: 16

約数和(自身を含む): 37602144

約数和(自身を除く): 15703666

約数列:

[1, 2, 7, 14, 977, 1601, 1954, 3202, 6839, 11207, 13678, 22414, 1564177, 3128354, 10949239, 21898478]

約数ペア:

[(1, 21898478), (2, 10949239), (7, 3128354), (14, 1564177), (977, 22414), (1601, 13678), (1954, 11207), (3202, 6839)]