289940721

素因数分解:

$3^1\times 7^1\times {\mathrm{1889}}^1\times {\mathrm{7309}}^1$

素因数の和:9208

約数の個数: 16

約数和(自身を含む): 442108800

約数和(自身を除く): 152168079

約数列:

[1, 3, 7, 21, 1889, 5667, 7309, 13223, 21927, 39669, 51163, 153489, 13806701, 41420103, 96646907, 289940721]

約数ペア:

[(1, 289940721), (3, 96646907), (7, 41420103), (21, 13806701), (1889, 153489), (5667, 51163), (7309, 39669), (13223, 21927)]