20861596

素因数分解:

$2^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{7681}}^1$

素因数の和:7789

約数の個数: 24

約数和(自身を含む): 42158816

約数和(自身を除く): 21297220

約数列:

[1, 2, 4, 7, 14, 28, 97, 194, 388, 679, 1358, 2716, 7681, 15362, 30724, 53767, 107534, 215068, 745057, 1490114, 2980228, 5215399, 10430798, 20861596]

約数ペア:

[(1, 20861596), (2, 10430798), (4, 5215399), (7, 2980228), (14, 1490114), (28, 745057), (97, 215068), (194, 107534), (388, 53767), (679, 30724), (1358, 15362), (2716, 7681)]