21637084

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{17971}}^1$

素因数の和:18025

約数の個数: 24

約数和(自身を含む): 44283008

約数和(自身を除く): 22645924

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 17971, 35942, 71884, 125797, 251594, 503188, 772753, 1545506, 3091012, 5409271, 10818542, 21637084]

約数ペア:

[(1, 21637084), (2, 10818542), (4, 5409271), (7, 3091012), (14, 1545506), (28, 772753), (43, 503188), (86, 251594), (172, 125797), (301, 71884), (602, 35942), (1204, 17971)]