19688347

素因数分解:

$7^2\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:247

約数の個数: 24

約数和(自身を含む): 23901696

約数和(自身を除く): 4213349

約数列:

[1, 7, 47, 49, 83, 103, 329, 581, 721, 2303, 3901, 4067, 4841, 5047, 8549, 27307, 33887, 59843, 191149, 237209, 401803, 418901, 2812621, 19688347]

約数ペア:

[(1, 19688347), (7, 2812621), (47, 418901), (49, 401803), (83, 237209), (103, 191149), (329, 59843), (581, 33887), (721, 27307), (2303, 8549), (3901, 5047), (4067, 4841)]