25827291

素因数分解:

$3^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{2081}}^1$

素因数の和:2291

約数の個数: 24

約数和(自身を含む): 42872544

約数和(自身を除く): 17045253

約数列:

[1, 3, 7, 9, 21, 63, 197, 591, 1379, 1773, 2081, 4137, 6243, 12411, 14567, 18729, 43701, 131103, 409957, 1229871, 2869699, 3689613, 8609097, 25827291]

約数ペア:

[(1, 25827291), (3, 8609097), (7, 3689613), (9, 2869699), (21, 1229871), (63, 409957), (197, 131103), (591, 43701), (1379, 18729), (1773, 14567), (2081, 12411), (4137, 6243)]