123221979

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{28703}}^1$

素因数の和:28768

約数の個数: 20

約数和(自身を含む): 187551936

約数和(自身を除く): 64329957

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 1431, 4293, 28703, 86109, 258327, 774981, 1521259, 2324943, 4563777, 13691331, 41073993, 123221979]

約数ペア:

[(1, 123221979), (3, 41073993), (9, 13691331), (27, 4563777), (53, 2324943), (81, 1521259), (159, 774981), (477, 258327), (1431, 86109), (4293, 28703)]