21990673

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{449}}^1$

素因数の和:576

約数の個数: 16

約数和(自身を含む): 24235200

約数和(自身を除く): 2244527

約数列:

[1, 17, 43, 67, 449, 731, 1139, 2881, 7633, 19307, 30083, 48977, 328219, 511411, 1293569, 21990673]

約数ペア:

[(1, 21990673), (17, 1293569), (43, 511411), (67, 328219), (449, 48977), (731, 30083), (1139, 19307), (2881, 7633)]