19985512

素因数分解:

$2^3\times {\mathrm{977}}^1\times {\mathrm{2557}}^1$

素因数の和:3540

約数の個数: 16

約数和(自身を含む): 37525860

約数和(自身を除く): 17540348

約数列:

[1, 2, 4, 8, 977, 1954, 2557, 3908, 5114, 7816, 10228, 20456, 2498189, 4996378, 9992756, 19985512]

約数ペア:

[(1, 19985512), (2, 9992756), (4, 4996378), (8, 2498189), (977, 20456), (1954, 10228), (2557, 7816), (3908, 5114)]