19955915

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{19661}}^1$

素因数の和:19702

約数の個数: 16

約数和(自身を含む): 28313280

約数和(自身を除く): 8357365

約数列:

[1, 5, 7, 29, 35, 145, 203, 1015, 19661, 98305, 137627, 570169, 688135, 2850845, 3991183, 19955915]

約数ペア:

[(1, 19955915), (5, 3991183), (7, 2850845), (29, 688135), (35, 570169), (145, 137627), (203, 98305), (1015, 19661)]