18949115

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1\times {\mathrm{239}}^1$

素因数の和:502

約数の個数: 16

約数和(自身を含む): 23207040

約数和(自身を除く): 4257925

約数列:

[1, 5, 101, 157, 239, 505, 785, 1195, 15857, 24139, 37523, 79285, 120695, 187615, 3789823, 18949115]

約数ペア:

[(1, 18949115), (5, 3789823), (101, 187615), (157, 120695), (239, 79285), (505, 37523), (785, 24139), (1195, 15857)]