20120784939

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{4001}}^1\times {\mathrm{9803}}^1$

素因数の和:13832

約数の個数: 32

約数和(自身を含む): 31388486400

約数和(自身を除く): 11267701461

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 4001, 9803, 12003, 29409, 36009, 76019, 88227, 108027, 186257, 228057, 264681, 558771, 684171, 1676313, 2052513, 5028939, 39221803, 117665409, 352996227, 745214257, 1058988681, 2235642771, 6706928313, 20120784939]

約数ペア:

[(1, 20120784939), (3, 6706928313), (9, 2235642771), (19, 1058988681), (27, 745214257), (57, 352996227), (171, 117665409), (513, 39221803), (4001, 5028939), (9803, 2052513), (12003, 1676313), (29409, 684171), (36009, 558771), (76019, 264681), (88227, 228057), (108027, 186257)]