25281837

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21121}}^1$

素因数の和:21153

約数の個数: 24

約数和(自身を含む): 43933760

約数和(自身を除く): 18651923

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 21121, 63363, 147847, 190089, 401299, 443541, 1203897, 1330623, 2809093, 3611691, 8427279, 25281837]

約数ペア:

[(1, 25281837), (3, 8427279), (7, 3611691), (9, 2809093), (19, 1330623), (21, 1203897), (57, 443541), (63, 401299), (133, 190089), (171, 147847), (399, 63363), (1197, 21121)]