19894011

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1\times {\mathrm{719}}^1$

素因数の和:1146

約数の個数: 16

約数和(自身を含む): 27786240

約数和(自身を除く): 7892229

約数列:

[1, 3, 23, 69, 401, 719, 1203, 2157, 9223, 16537, 27669, 49611, 288319, 864957, 6631337, 19894011]

約数ペア:

[(1, 19894011), (3, 6631337), (23, 864957), (69, 288319), (401, 49611), (719, 27669), (1203, 16537), (2157, 9223)]