66476781

素因数分解:

$3^6\times 7^2\times {\mathrm{1861}}^1$

素因数の和:1893

約数の個数: 42

約数和(自身を含む): 116004462

約数和(自身を除く): 49527681

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 567, 729, 1323, 1701, 1861, 3969, 5103, 5583, 11907, 13027, 16749, 35721, 39081, 50247, 91189, 117243, 150741, 273567, 351729, 452223, 820701, 1055187, 1356669, 2462103, 3165561, 7386309, 9496683, 22158927, 66476781]

約数ペア:

[(1, 66476781), (3, 22158927), (7, 9496683), (9, 7386309), (21, 3165561), (27, 2462103), (49, 1356669), (63, 1055187), (81, 820701), (147, 452223), (189, 351729), (243, 273567), (441, 150741), (567, 117243), (729, 91189), (1323, 50247), (1701, 39081), (1861, 35721), (3969, 16749), (5103, 13027), (5583, 11907)]