25821747

素因数分解:

$3^4\times 7^1\times {\mathrm{45541}}^1$

素因数の和:45560

約数の個数: 20

約数和(自身を含む): 44084656

約数和(自身を除く): 18262909

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 45541, 136623, 318787, 409869, 956361, 1229607, 2869083, 3688821, 8607249, 25821747]

約数ペア:

[(1, 25821747), (3, 8607249), (7, 3688821), (9, 2869083), (21, 1229607), (27, 956361), (63, 409869), (81, 318787), (189, 136623), (567, 45541)]