21013089

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{2099}}^1$

素因数の和:2220

約数の個数: 16

約数和(自身を含む): 29030400

約数和(自身を除く): 8017311

約数列:

[1, 3, 47, 71, 141, 213, 2099, 3337, 6297, 10011, 98653, 149029, 295959, 447087, 7004363, 21013089]

約数ペア:

[(1, 21013089), (3, 7004363), (47, 447087), (71, 295959), (141, 149029), (213, 98653), (2099, 10011), (3337, 6297)]