19807543

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{2467}}^1$

素因数の和:2542

約数の個数: 16

約数和(自身を含む): 24008704

約数和(自身を除く): 4201161

約数列:

[1, 7, 31, 37, 217, 259, 1147, 2467, 8029, 17269, 76477, 91279, 535339, 638953, 2829649, 19807543]

約数ペア:

[(1, 19807543), (7, 2829649), (31, 638953), (37, 535339), (217, 91279), (259, 76477), (1147, 17269), (2467, 8029)]