20672253

素因数分解:

$3^6\times 7^1\times {\mathrm{4051}}^1$

素因数の和:4076

約数の個数: 28

約数和(自身を含む): 35430688

約数和(自身を除く): 14758435

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 4051, 5103, 12153, 28357, 36459, 85071, 109377, 255213, 328131, 765639, 984393, 2296917, 2953179, 6890751, 20672253]

約数ペア:

[(1, 20672253), (3, 6890751), (7, 2953179), (9, 2296917), (21, 984393), (27, 765639), (63, 328131), (81, 255213), (189, 109377), (243, 85071), (567, 36459), (729, 28357), (1701, 12153), (4051, 5103)]