20216218

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{39953}}^1$

素因数の和:39989

約数の個数: 16

約数和(自身を含む): 34520256

約数和(自身を除く): 14304038

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 39953, 79906, 439483, 878966, 918919, 1837838, 10108109, 20216218]

約数ペア:

[(1, 20216218), (2, 10108109), (11, 1837838), (22, 918919), (23, 878966), (46, 439483), (253, 79906), (506, 39953)]