21011893

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{2617}}^1$

素因数の和:2692

約数の個数: 16

約数和(自身を含む): 25467904

約数和(自身を除く): 4456011

約数列:

[1, 7, 31, 37, 217, 259, 1147, 2617, 8029, 18319, 81127, 96829, 567889, 677803, 3001699, 21011893]

約数ペア:

[(1, 21011893), (7, 3001699), (31, 677803), (37, 567889), (217, 96829), (259, 81127), (1147, 18319), (2617, 8029)]