20790882

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1051}}^1$

素因数の和:1223

約数の個数: 48

約数和(自身を含む): 51859392

約数和(自身を除く): 31068510

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 157, 314, 471, 942, 1051, 1099, 1413, 2102, 2198, 2826, 3153, 3297, 6306, 6594, 7357, 9459, 9891, 14714, 18918, 19782, 22071, 44142, 66213, 132426, 165007, 330014, 495021, 990042, 1155049, 1485063, 2310098, 2970126, 3465147, 6930294, 10395441, 20790882]

約数ペア:

[(1, 20790882), (2, 10395441), (3, 6930294), (6, 3465147), (7, 2970126), (9, 2310098), (14, 1485063), (18, 1155049), (21, 990042), (42, 495021), (63, 330014), (126, 165007), (157, 132426), (314, 66213), (471, 44142), (942, 22071), (1051, 19782), (1099, 18918), (1413, 14714), (2102, 9891), (2198, 9459), (2826, 7357), (3153, 6594), (3297, 6306)]