21888511

素因数分解:

${\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{181}}^1$

素因数の和:342

約数の個数: 16

約数和(自身を含む): 23482368

約数和(自身を除く): 1593857

約数列:

[1, 31, 47, 83, 181, 1457, 2573, 3901, 5611, 8507, 15023, 120931, 263717, 465713, 706081, 21888511]

約数ペア:

[(1, 21888511), (31, 706081), (47, 465713), (83, 263717), (181, 120931), (1457, 15023), (2573, 8507), (3901, 5611)]