25490781

素因数分解:

$3^4\times {\mathrm{389}}^1\times {\mathrm{809}}^1$

素因数の和:1210

約数の個数: 20

約数和(自身を含む): 38223900

約数和(自身を除く): 12733119

約数列:

[1, 3, 9, 27, 81, 389, 809, 1167, 2427, 3501, 7281, 10503, 21843, 31509, 65529, 314701, 944103, 2832309, 8496927, 25490781]

約数ペア:

[(1, 25490781), (3, 8496927), (9, 2832309), (27, 944103), (81, 314701), (389, 65529), (809, 31509), (1167, 21843), (2427, 10503), (3501, 7281)]