261330241761

素因数分解:

$3^4\times {\mathrm{809}}^1\times {\mathrm{1997}}^2$

素因数の和:4815

約数の個数: 30

約数和(自身を含む): 391060586070

約数和(自身を除く): 129730344309

約数列:

[1, 3, 9, 27, 81, 809, 1997, 2427, 5991, 7281, 17973, 21843, 53919, 65529, 161757, 1615573, 3988009, 4846719, 11964027, 14540157, 35892081, 43620471, 107676243, 130861413, 323028729, 3226299281, 9678897843, 29036693529, 87110080587, 261330241761]

約数ペア:

[(1, 261330241761), (3, 87110080587), (9, 29036693529), (27, 9678897843), (81, 3226299281), (809, 323028729), (1997, 130861413), (2427, 107676243), (5991, 43620471), (7281, 35892081), (17973, 14540157), (21843, 11964027), (53919, 4846719), (65529, 3988009), (161757, 1615573)]