20204908

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{4871}}^1$

素因数の和:4953

約数の個数: 24

約数和(自身を含む): 38060064

約数和(自身を除く): 17855156

約数列:

[1, 2, 4, 17, 34, 61, 68, 122, 244, 1037, 2074, 4148, 4871, 9742, 19484, 82807, 165614, 297131, 331228, 594262, 1188524, 5051227, 10102454, 20204908]

約数ペア:

[(1, 20204908), (2, 10102454), (4, 5051227), (17, 1188524), (34, 594262), (61, 331228), (68, 297131), (122, 165614), (244, 82807), (1037, 19484), (2074, 9742), (4148, 4871)]