258819

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:79

約数の個数: 24

約数和(自身を含む): 408576

約数和(自身を除く): 149757

約数列:

[1, 3, 11, 23, 31, 33, 69, 93, 121, 253, 341, 363, 713, 759, 1023, 2139, 2783, 3751, 7843, 8349, 11253, 23529, 86273, 258819]

約数ペア:

[(1, 258819), (3, 86273), (11, 23529), (23, 11253), (31, 8349), (33, 7843), (69, 3751), (93, 2783), (121, 2139), (253, 1023), (341, 759), (363, 713)]