18642895

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{631}}^1$

素因数の和:966

約数の個数: 16

約数和(自身を含む): 23662080

約数和(自身を除く): 5019185

約数列:

[1, 5, 19, 95, 311, 631, 1555, 3155, 5909, 11989, 29545, 59945, 196241, 981205, 3728579, 18642895]

約数ペア:

[(1, 18642895), (5, 3728579), (19, 981205), (95, 196241), (311, 59945), (631, 29545), (1555, 11989), (3155, 5909)]