20854827

素因数分解:

$3^4\times 7^1\times {\mathrm{36781}}^1$

素因数の和:36800

約数の個数: 20

約数和(自身を含む): 35604976

約数和(自身を除く): 14750149

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 36781, 110343, 257467, 331029, 772401, 993087, 2317203, 2979261, 6951609, 20854827]

約数ペア:

[(1, 20854827), (3, 6951609), (7, 2979261), (9, 2317203), (21, 993087), (27, 772401), (63, 331029), (81, 257467), (189, 110343), (567, 36781)]