19487908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{2447}}^1$

素因数の和:2643

約数の個数: 24

約数和(自身を含む): 37425024

約数和(自身を除く): 17937116

約数列:

[1, 2, 4, 11, 22, 44, 181, 362, 724, 1991, 2447, 3982, 4894, 7964, 9788, 26917, 53834, 107668, 442907, 885814, 1771628, 4871977, 9743954, 19487908]

約数ペア:

[(1, 19487908), (2, 9743954), (4, 4871977), (11, 1771628), (22, 885814), (44, 442907), (181, 107668), (362, 53834), (724, 26917), (1991, 9788), (2447, 7964), (3982, 4894)]