21896540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{35317}}^1$

素因数の和:35357

約数の個数: 24

約数和(自身を含む): 47467392

約数和(自身を除く): 25570852

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 35317, 70634, 141268, 176585, 353170, 706340, 1094827, 2189654, 4379308, 5474135, 10948270, 21896540]

約数ペア:

[(1, 21896540), (2, 10948270), (4, 5474135), (5, 4379308), (10, 2189654), (20, 1094827), (31, 706340), (62, 353170), (124, 176585), (155, 141268), (310, 70634), (620, 35317)]