2505249

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:366

約数の個数: 20

約数和(自身を含む): 3785364

約数和(自身を除く): 1280115

約数列:

[1, 3, 9, 27, 81, 157, 197, 471, 591, 1413, 1773, 4239, 5319, 12717, 15957, 30929, 92787, 278361, 835083, 2505249]

約数ペア:

[(1, 2505249), (3, 835083), (9, 278361), (27, 92787), (81, 30929), (157, 15957), (197, 12717), (471, 5319), (591, 4239), (1413, 1773)]