25212789

素因数分解:

$3^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{839}}^1$

素因数の和:911

約数の個数: 40

約数和(自身を含む): 43908480

約数和(自身を除く): 18695691

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 81, 159, 189, 371, 477, 567, 839, 1113, 1431, 2517, 3339, 4293, 5873, 7551, 10017, 17619, 22653, 30051, 44467, 52857, 67959, 133401, 158571, 311269, 400203, 475713, 933807, 1200609, 2801421, 3601827, 8404263, 25212789]

約数ペア:

[(1, 25212789), (3, 8404263), (7, 3601827), (9, 2801421), (21, 1200609), (27, 933807), (53, 475713), (63, 400203), (81, 311269), (159, 158571), (189, 133401), (371, 67959), (477, 52857), (567, 44467), (839, 30051), (1113, 22653), (1431, 17619), (2517, 10017), (3339, 7551), (4293, 5873)]