19655209

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1709}}^1$

素因数の和:1800

約数の個数: 16

約数和(自身を含む): 23639040

約数和(自身を除く): 3983831

約数列:

[1, 7, 31, 53, 217, 371, 1643, 1709, 11501, 11963, 52979, 90577, 370853, 634039, 2807887, 19655209]

約数ペア:

[(1, 19655209), (7, 2807887), (31, 634039), (53, 370853), (217, 90577), (371, 52979), (1643, 11963), (1709, 11501)]