18786896

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2131}}^1$

素因数の和:2187

約数の個数: 40

約数和(自身を含む): 39655200

約数和(自身を除く): 20868304

約数列:

[1, 2, 4, 8, 16, 19, 29, 38, 58, 76, 116, 152, 232, 304, 464, 551, 1102, 2131, 2204, 4262, 4408, 8524, 8816, 17048, 34096, 40489, 61799, 80978, 123598, 161956, 247196, 323912, 494392, 647824, 988784, 1174181, 2348362, 4696724, 9393448, 18786896]

約数ペア:

[(1, 18786896), (2, 9393448), (4, 4696724), (8, 2348362), (16, 1174181), (19, 988784), (29, 647824), (38, 494392), (58, 323912), (76, 247196), (116, 161956), (152, 123598), (232, 80978), (304, 61799), (464, 40489), (551, 34096), (1102, 17048), (2131, 8816), (2204, 8524), (4262, 4408)]