20127316

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{7499}}^1$

素因数の和:7575

約数の個数: 24

約数和(自身を含む): 39060000

約数和(自身を除く): 18932684

約数列:

[1, 2, 4, 11, 22, 44, 61, 122, 244, 671, 1342, 2684, 7499, 14998, 29996, 82489, 164978, 329956, 457439, 914878, 1829756, 5031829, 10063658, 20127316]

約数ペア:

[(1, 20127316), (2, 10063658), (4, 5031829), (11, 1829756), (22, 914878), (44, 457439), (61, 329956), (122, 164978), (244, 82489), (671, 29996), (1342, 14998), (2684, 7499)]