25481673

素因数分解:

$3^2\times 7^1\times {\mathrm{631}}^1\times {\mathrm{641}}^1$

素因数の和:1285

約数の個数: 24

約数和(自身を含む): 42197376

約数和(自身を除く): 16715703

約数列:

[1, 3, 7, 9, 21, 63, 631, 641, 1893, 1923, 4417, 4487, 5679, 5769, 13251, 13461, 39753, 40383, 404471, 1213413, 2831297, 3640239, 8493891, 25481673]

約数ペア:

[(1, 25481673), (3, 8493891), (7, 3640239), (9, 2831297), (21, 1213413), (63, 404471), (631, 40383), (641, 39753), (1893, 13461), (1923, 13251), (4417, 5769), (4487, 5679)]