21488901

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{8599}}^1$

素因数の和:8633

約数の個数: 24

約数和(自身を含む): 35294400

約数和(自身を除く): 13805499

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 8599, 25797, 60193, 146183, 180579, 421351, 438549, 1023281, 1264053, 3069843, 7162967, 21488901]

約数ペア:

[(1, 21488901), (3, 7162967), (7, 3069843), (17, 1264053), (21, 1023281), (49, 438549), (51, 421351), (119, 180579), (147, 146183), (357, 60193), (833, 25797), (2499, 8599)]