21329665

素因数分解:

$5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{5591}}^1$

素因数の和:5712

約数の個数: 16

約数和(自身を含む): 29525760

約数和(自身を除く): 8196095

約数列:

[1, 5, 7, 35, 109, 545, 763, 3815, 5591, 27955, 39137, 195685, 609419, 3047095, 4265933, 21329665]

約数ペア:

[(1, 21329665), (5, 4265933), (7, 3047095), (35, 609419), (109, 195685), (545, 39137), (763, 27955), (3815, 5591)]