25561179

素因数分解:

$3^2\times 7^1\times {\mathrm{631}}^1\times {\mathrm{643}}^1$

素因数の和:1287

約数の個数: 24

約数和(自身を含む): 42328832

約数和(自身を除く): 16767653

約数列:

[1, 3, 7, 9, 21, 63, 631, 643, 1893, 1929, 4417, 4501, 5679, 5787, 13251, 13503, 39753, 40509, 405733, 1217199, 2840131, 3651597, 8520393, 25561179]

約数ペア:

[(1, 25561179), (3, 8520393), (7, 3651597), (9, 2840131), (21, 1217199), (63, 405733), (631, 40509), (643, 39753), (1893, 13503), (1929, 13251), (4417, 5787), (4501, 5679)]