19618965

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10139}}^1$

素因数の和:10193

約数の個数: 24

約数和(自身を含む): 34800480

約数和(自身を除く): 15181515

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 10139, 30417, 50695, 91251, 152085, 435977, 456255, 1307931, 2179885, 3923793, 6539655, 19618965]

約数ペア:

[(1, 19618965), (3, 6539655), (5, 3923793), (9, 2179885), (15, 1307931), (43, 456255), (45, 435977), (129, 152085), (215, 91251), (387, 50695), (645, 30417), (1935, 10139)]