20579215

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1\times {\mathrm{643}}^1$

素因数の和:858

約数の個数: 16

約数和(自身を含む): 25548768

約数和(自身を除く): 4969553

約数列:

[1, 5, 37, 173, 185, 643, 865, 3215, 6401, 23791, 32005, 111239, 118955, 556195, 4115843, 20579215]

約数ペア:

[(1, 20579215), (5, 4115843), (37, 556195), (173, 118955), (185, 111239), (643, 32005), (865, 23791), (3215, 6401)]