988891281

素因数分解:

$3^3\times 7^1\times {\mathrm{5232229}}^1$

素因数の和:5232245

約数の個数: 16

約数和(自身を含む): 1674313600

約数和(自身を除く): 685422319

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 5232229, 15696687, 36625603, 47090061, 109876809, 141270183, 329630427, 988891281]

約数ペア:

[(1, 988891281), (3, 329630427), (7, 141270183), (9, 109876809), (21, 47090061), (27, 36625603), (63, 15696687), (189, 5232229)]