18840647

素因数分解:

$7^5\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:113

約数の個数: 24

約数和(自身を含む): 23529600

約数和(自身を除く): 4688953

約数列:

[1, 7, 19, 49, 59, 133, 343, 413, 931, 1121, 2401, 2891, 6517, 7847, 16807, 20237, 45619, 54929, 141659, 319333, 384503, 991613, 2691521, 18840647]

約数ペア:

[(1, 18840647), (7, 2691521), (19, 991613), (49, 384503), (59, 319333), (133, 141659), (343, 54929), (413, 45619), (931, 20237), (1121, 16807), (2401, 7847), (2891, 6517)]