211761

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:74

約数の個数: 32

約数和(自身を含む): 368640

約数和(自身を除く): 156879

約数列:

[1, 3, 9, 11, 23, 27, 31, 33, 69, 93, 99, 207, 253, 279, 297, 341, 621, 713, 759, 837, 1023, 2139, 2277, 3069, 6417, 6831, 7843, 9207, 19251, 23529, 70587, 211761]

約数ペア:

[(1, 211761), (3, 70587), (9, 23529), (11, 19251), (23, 9207), (27, 7843), (31, 6831), (33, 6417), (69, 3069), (93, 2277), (99, 2139), (207, 1023), (253, 837), (279, 759), (297, 713), (341, 621)]