20178698868

素因数分解:

$2^2\times 3^2\times {\mathrm{521}}^1\times {\mathrm{1075853}}^1$

素因数の和:1076384

約数の個数: 36

約数和(自身を含む): 51105216708

約数和(自身を除く): 30926517840

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 521, 1042, 1563, 2084, 3126, 4689, 6252, 9378, 18756, 1075853, 2151706, 3227559, 4303412, 6455118, 9682677, 12910236, 19365354, 38730708, 560519413, 1121038826, 1681558239, 2242077652, 3363116478, 5044674717, 6726232956, 10089349434, 20178698868]

約数ペア:

[(1, 20178698868), (2, 10089349434), (3, 6726232956), (4, 5044674717), (6, 3363116478), (9, 2242077652), (12, 1681558239), (18, 1121038826), (36, 560519413), (521, 38730708), (1042, 19365354), (1563, 12910236), (2084, 9682677), (3126, 6455118), (4689, 4303412), (6252, 3227559), (9378, 2151706), (18756, 1075853)]