20187605781

素因数分解:

$3^6\times 7^1\times {\mathrm{3956027}}^1$

素因数の和:3956052

約数の個数: 28

約数和(自身を含む): 34591508832

約数和(自身を除く): 14403903051

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 5103, 3956027, 11868081, 27692189, 35604243, 83076567, 106812729, 249229701, 320438187, 747689103, 961314561, 2243067309, 2883943683, 6729201927, 20187605781]

約数ペア:

[(1, 20187605781), (3, 6729201927), (7, 2883943683), (9, 2243067309), (21, 961314561), (27, 747689103), (63, 320438187), (81, 249229701), (189, 106812729), (243, 83076567), (567, 35604243), (729, 27692189), (1701, 11868081), (5103, 3956027)]