20971929

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{27631}}^1$

素因数の和:27668

約数の個数: 16

約数和(自身を含む): 31832064

約数和(自身を除く): 10860135

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 27631, 82893, 303941, 635513, 911823, 1906539, 6990643, 20971929]

約数ペア:

[(1, 20971929), (3, 6990643), (11, 1906539), (23, 911823), (33, 635513), (69, 303941), (253, 82893), (759, 27631)]