20110923

素因数分解:

$3^6\times 7^2\times {\mathrm{563}}^1$

素因数の和:595

約数の個数: 42

約数和(自身を含む): 35137764

約数和(自身を除く): 15026841

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 563, 567, 729, 1323, 1689, 1701, 3941, 3969, 5067, 5103, 11823, 11907, 15201, 27587, 35469, 35721, 45603, 82761, 106407, 136809, 248283, 319221, 410427, 744849, 957663, 2234547, 2872989, 6703641, 20110923]

約数ペア:

[(1, 20110923), (3, 6703641), (7, 2872989), (9, 2234547), (21, 957663), (27, 744849), (49, 410427), (63, 319221), (81, 248283), (147, 136809), (189, 106407), (243, 82761), (441, 45603), (563, 35721), (567, 35469), (729, 27587), (1323, 15201), (1689, 11907), (1701, 11823), (3941, 5103), (3969, 5067)]