991355

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:238

約数の個数: 16

約数和(自身を含む): 1283040

約数和(自身を除く): 291685

約数列:

[1, 5, 17, 85, 107, 109, 535, 545, 1819, 1853, 9095, 9265, 11663, 58315, 198271, 991355]

約数ペア:

[(1, 991355), (5, 198271), (17, 58315), (85, 11663), (107, 9265), (109, 9095), (535, 1853), (545, 1819)]