20205531

素因数分解:

$3^4\times {\mathrm{19}}^2\times {\mathrm{691}}^1$

素因数の和:741

約数の個数: 30

約数和(自身を含む): 31901892

約数和(自身を除く): 11696361

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 361, 513, 691, 1083, 1539, 2073, 3249, 6219, 9747, 13129, 18657, 29241, 39387, 55971, 118161, 249451, 354483, 748353, 1063449, 2245059, 6735177, 20205531]

約数ペア:

[(1, 20205531), (3, 6735177), (9, 2245059), (19, 1063449), (27, 748353), (57, 354483), (81, 249451), (171, 118161), (361, 55971), (513, 39387), (691, 29241), (1083, 18657), (1539, 13129), (2073, 9747), (3249, 6219)]