21701853

素因数分解:

$3^2\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{233}}^1$

素因数の和:449

約数の個数: 24

約数和(自身を含む): 32123520

約数和(自身を除く): 10421667

約数列:

[1, 3, 9, 79, 131, 233, 237, 393, 699, 711, 1179, 2097, 10349, 18407, 30523, 31047, 55221, 91569, 93141, 165663, 274707, 2411317, 7233951, 21701853]

約数ペア:

[(1, 21701853), (3, 7233951), (9, 2411317), (79, 274707), (131, 165663), (233, 93141), (237, 91569), (393, 55221), (699, 31047), (711, 30523), (1179, 18407), (2097, 10349)]