18880899

素因数分解:

$3^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1\times {\mathrm{449}}^1$

素因数の和:690

約数の個数: 16

約数和(自身を含む): 25660800

約数和(自身を除く): 6779901

約数列:

[1, 3, 107, 131, 321, 393, 449, 1347, 14017, 42051, 48043, 58819, 144129, 176457, 6293633, 18880899]

約数ペア:

[(1, 18880899), (3, 6293633), (107, 176457), (131, 144129), (321, 58819), (393, 48043), (449, 42051), (1347, 14017)]