20159931

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:160

約数の個数: 48

約数和(自身を含む): 32345600

約数和(自身を除く): 12185669

約数列:

[1, 3, 11, 19, 33, 37, 57, 79, 111, 121, 209, 237, 363, 407, 627, 703, 869, 1221, 1501, 2109, 2299, 2607, 2923, 4477, 4503, 6897, 7733, 8769, 9559, 13431, 16511, 23199, 28677, 32153, 49533, 55537, 85063, 96459, 166611, 181621, 255189, 353683, 544863, 610907, 1061049, 1832721, 6719977, 20159931]

約数ペア:

[(1, 20159931), (3, 6719977), (11, 1832721), (19, 1061049), (33, 610907), (37, 544863), (57, 353683), (79, 255189), (111, 181621), (121, 166611), (209, 96459), (237, 85063), (363, 55537), (407, 49533), (627, 32153), (703, 28677), (869, 23199), (1221, 16511), (1501, 13431), (2109, 9559), (2299, 8769), (2607, 7733), (2923, 6897), (4477, 4503)]