20025981

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{379}}^1$

素因数の和:510

約数の個数: 32

約数和(自身を含む): 31616000

約数和(自身を除く): 11590019

約数列:

[1, 3, 9, 19, 27, 57, 103, 171, 309, 379, 513, 927, 1137, 1957, 2781, 3411, 5871, 7201, 10233, 17613, 21603, 39037, 52839, 64809, 117111, 194427, 351333, 741703, 1053999, 2225109, 6675327, 20025981]

約数ペア:

[(1, 20025981), (3, 6675327), (9, 2225109), (19, 1053999), (27, 741703), (57, 351333), (103, 194427), (171, 117111), (309, 64809), (379, 52839), (513, 39037), (927, 21603), (1137, 17613), (1957, 10233), (2781, 7201), (3411, 5871)]