19820668

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{9697}}^1$

素因数の和:9781

約数の個数: 24

約数和(自身を含む): 40188512

約数和(自身を除く): 20367844

約数列:

[1, 2, 4, 7, 14, 28, 73, 146, 292, 511, 1022, 2044, 9697, 19394, 38788, 67879, 135758, 271516, 707881, 1415762, 2831524, 4955167, 9910334, 19820668]

約数ペア:

[(1, 19820668), (2, 9910334), (4, 4955167), (7, 2831524), (14, 1415762), (28, 707881), (73, 271516), (146, 135758), (292, 67879), (511, 38788), (1022, 19394), (2044, 9697)]