19271978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{1951}}^1$

素因数の和:2413

約数の個数: 16

約数和(自身を含む): 31622400

約数和(自身を除く): 12350422

約数列:

[1, 2, 11, 22, 449, 898, 1951, 3902, 4939, 9878, 21461, 42922, 875999, 1751998, 9635989, 19271978]

約数ペア:

[(1, 19271978), (2, 9635989), (11, 1751998), (22, 875999), (449, 42922), (898, 21461), (1951, 9878), (3902, 4939)]