21144579

素因数分解:

$3^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1\times {\mathrm{311}}^1$

素因数の和:618

約数の個数: 16

約数和(自身を含む): 28664064

約数和(自身を除く): 7519485

約数列:

[1, 3, 131, 173, 311, 393, 519, 933, 22663, 40741, 53803, 67989, 122223, 161409, 7048193, 21144579]

約数ペア:

[(1, 21144579), (3, 7048193), (131, 161409), (173, 122223), (311, 67989), (393, 53803), (519, 40741), (933, 22663)]