21235389

素因数分解:

$3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{4231}}^1$

素因数の和:4480

約数の個数: 16

約数和(自身を含む): 32501760

約数和(自身を除く): 11266371

約数列:

[1, 3, 7, 21, 239, 717, 1673, 4231, 5019, 12693, 29617, 88851, 1011209, 3033627, 7078463, 21235389]

約数ペア:

[(1, 21235389), (3, 7078463), (7, 3033627), (21, 1011209), (239, 88851), (717, 29617), (1673, 12693), (4231, 5019)]