19906516

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{9739}}^1$

素因数の和:9823

約数の個数: 24

約数和(自身を含む): 40362560

約数和(自身を除く): 20456044

約数列:

[1, 2, 4, 7, 14, 28, 73, 146, 292, 511, 1022, 2044, 9739, 19478, 38956, 68173, 136346, 272692, 710947, 1421894, 2843788, 4976629, 9953258, 19906516]

約数ペア:

[(1, 19906516), (2, 9953258), (4, 4976629), (7, 2843788), (14, 1421894), (28, 710947), (73, 272692), (146, 136346), (292, 68173), (511, 38956), (1022, 19478), (2044, 9739)]