21501297

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{241}}^1\times {\mathrm{431}}^1$

素因数の和:701

約数の個数: 24

約数和(自身を含む): 32617728

約数和(自身を除く): 11116431

約数列:

[1, 3, 9, 23, 69, 207, 241, 431, 723, 1293, 2169, 3879, 5543, 9913, 16629, 29739, 49887, 89217, 103871, 311613, 934839, 2389033, 7167099, 21501297]

約数ペア:

[(1, 21501297), (3, 7167099), (9, 2389033), (23, 934839), (69, 311613), (207, 103871), (241, 89217), (431, 49887), (723, 29739), (1293, 16629), (2169, 9913), (3879, 5543)]