21730929

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{28631}}^1$

素因数の和:28668

約数の個数: 16

約数和(自身を含む): 32984064

約数和(自身を除く): 11253135

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 28631, 85893, 314941, 658513, 944823, 1975539, 7243643, 21730929]

約数ペア:

[(1, 21730929), (3, 7243643), (11, 1975539), (23, 944823), (33, 658513), (69, 314941), (253, 85893), (759, 28631)]