19201389

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1\times {\mathrm{661}}^1$

素因数の和:1108

約数の個数: 16

約数和(自身を含む): 26818944

約数和(自身を除く): 7617555

約数列:

[1, 3, 23, 69, 421, 661, 1263, 1983, 9683, 15203, 29049, 45609, 278281, 834843, 6400463, 19201389]

約数ペア:

[(1, 19201389), (3, 6400463), (23, 834843), (69, 278281), (421, 45609), (661, 29049), (1263, 15203), (1983, 9683)]