21733019

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:747

約数の個数: 24

約数和(自身を含む): 28074096

約数和(自身を除く): 6341077

約数列:

[1, 7, 11, 49, 61, 77, 427, 539, 661, 671, 2989, 4627, 4697, 7271, 32389, 32879, 40321, 50897, 282247, 356279, 443531, 1975729, 3104717, 21733019]

約数ペア:

[(1, 21733019), (7, 3104717), (11, 1975729), (49, 443531), (61, 356279), (77, 282247), (427, 50897), (539, 40321), (661, 32879), (671, 32389), (2989, 7271), (4627, 4697)]