25966269

素因数分解:

$3^2\times 7^1\times {\mathrm{641}}^1\times {\mathrm{643}}^1$

素因数の和:1297

約数の個数: 24

約数和(自身を含む): 42998592

約数和(自身を除く): 17032323

約数列:

[1, 3, 7, 9, 21, 63, 641, 643, 1923, 1929, 4487, 4501, 5769, 5787, 13461, 13503, 40383, 40509, 412163, 1236489, 2885141, 3709467, 8655423, 25966269]

約数ペア:

[(1, 25966269), (3, 8655423), (7, 3709467), (9, 2885141), (21, 1236489), (63, 412163), (641, 40509), (643, 40383), (1923, 13503), (1929, 13461), (4487, 5787), (4501, 5769)]