20443929

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{3581}}^1$

素因数の和:3768

約数の個数: 16

約数和(自身を含む): 29916864

約数和(自身を除く): 9472935

約数列:

[1, 3, 11, 33, 173, 519, 1903, 3581, 5709, 10743, 39391, 118173, 619513, 1858539, 6814643, 20443929]

約数ペア:

[(1, 20443929), (3, 6814643), (11, 1858539), (33, 619513), (173, 118173), (519, 39391), (1903, 10743), (3581, 5709)]