25520719

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{317}}^1$

素因数の和:415

約数の個数: 24

約数和(自身を含む): 31321728

約数和(自身を除く): 5801009

約数列:

[1, 7, 31, 49, 53, 217, 317, 371, 1519, 1643, 2219, 2597, 9827, 11501, 15533, 16801, 68789, 80507, 117607, 481523, 520831, 823249, 3645817, 25520719]

約数ペア:

[(1, 25520719), (7, 3645817), (31, 823249), (49, 520831), (53, 481523), (217, 117607), (317, 80507), (371, 68789), (1519, 16801), (1643, 15533), (2219, 11501), (2597, 9827)]