20487087

素因数分解:

$3^6\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:354

約数の個数: 28

約数和(自身を含む): 31084920

約数和(自身を除く): 10597833

約数列:

[1, 3, 9, 27, 81, 157, 179, 243, 471, 537, 729, 1413, 1611, 4239, 4833, 12717, 14499, 28103, 38151, 43497, 84309, 114453, 130491, 252927, 758781, 2276343, 6829029, 20487087]

約数ペア:

[(1, 20487087), (3, 6829029), (9, 2276343), (27, 758781), (81, 252927), (157, 130491), (179, 114453), (243, 84309), (471, 43497), (537, 38151), (729, 28103), (1413, 14499), (1611, 12717), (4239, 4833)]