20856088

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{683}}^1$

素因数の和:1047

約数の個数: 32

約数和(自身を含む): 42845760

約数和(自身を除く): 21989672

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 347, 683, 694, 1366, 1388, 2732, 2776, 3817, 5464, 7513, 7634, 15026, 15268, 30052, 30536, 60104, 237001, 474002, 948004, 1896008, 2607011, 5214022, 10428044, 20856088]

約数ペア:

[(1, 20856088), (2, 10428044), (4, 5214022), (8, 2607011), (11, 1896008), (22, 948004), (44, 474002), (88, 237001), (347, 60104), (683, 30536), (694, 30052), (1366, 15268), (1388, 15026), (2732, 7634), (2776, 7513), (3817, 5464)]