21288652

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{69119}}^1$

素因数の和:69141

約数の個数: 24

約数和(自身を含む): 46448640

約数和(自身を除く): 25159988

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 69119, 138238, 276476, 483833, 760309, 967666, 1520618, 1935332, 3041236, 5322163, 10644326, 21288652]

約数ペア:

[(1, 21288652), (2, 10644326), (4, 5322163), (7, 3041236), (11, 1935332), (14, 1520618), (22, 967666), (28, 760309), (44, 483833), (77, 276476), (154, 138238), (308, 69119)]