66990843

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{2557}}^1$

素因数の和:2675

約数の個数: 24

約数和(自身を含む): 100560096

約数和(自身を除く): 33569253

約数列:

[1, 3, 9, 41, 71, 123, 213, 369, 639, 2557, 2911, 7671, 8733, 23013, 26199, 104837, 181547, 314511, 544641, 943533, 1633923, 7443427, 22330281, 66990843]

約数ペア:

[(1, 66990843), (3, 22330281), (9, 7443427), (41, 1633923), (71, 943533), (123, 544641), (213, 314511), (369, 181547), (639, 104837), (2557, 26199), (2911, 23013), (7671, 8733)]