21009436

素因数分解:

$2^2\times 7^3\times {\mathrm{15313}}^1$

素因数の和:15338

約数の個数: 24

約数和(自身を含む): 42879200

約数和(自身を除く): 21869764

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 15313, 30626, 61252, 107191, 214382, 428764, 750337, 1500674, 3001348, 5252359, 10504718, 21009436]

約数ペア:

[(1, 21009436), (2, 10504718), (4, 5252359), (7, 3001348), (14, 1500674), (28, 750337), (49, 428764), (98, 214382), (196, 107191), (343, 61252), (686, 30626), (1372, 15313)]