16720222

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{4421}}^1$

素因数の和:4515

約数の個数: 16

約数和(自身を含む): 26319744

約数和(自身を除く): 9599522

約数列:

[1, 2, 31, 61, 62, 122, 1891, 3782, 4421, 8842, 137051, 269681, 274102, 539362, 8360111, 16720222]

約数ペア:

[(1, 16720222), (2, 8360111), (31, 539362), (61, 274102), (62, 269681), (122, 137051), (1891, 8842), (3782, 4421)]