20121123

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{12973}}^1$

素因数の和:13034

約数の個数: 16

約数和(自身を含む): 29892096

約数和(自身を除く): 9770973

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 12973, 38919, 142703, 428109, 609731, 1829193, 6707041, 20121123]

約数ペア:

[(1, 20121123), (3, 6707041), (11, 1829193), (33, 609731), (47, 428109), (141, 142703), (517, 38919), (1551, 12973)]