21497673

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{1567}}^1$

素因数の和:1856

約数の個数: 16

約数和(自身を含む): 30481920

約数和(自身を除く): 8984247

約数列:

[1, 3, 17, 51, 269, 807, 1567, 4573, 4701, 13719, 26639, 79917, 421523, 1264569, 7165891, 21497673]

約数ペア:

[(1, 21497673), (3, 7165891), (17, 1264569), (51, 421523), (269, 79917), (807, 26639), (1567, 13719), (4573, 4701)]