20851023172

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{12207859}}^1$

素因数の和:12207931

約数の個数: 24

約数和(自身を含む): 42385689920

約数和(自身を除く): 21534666748

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 12207859, 24415718, 48831436, 85455013, 170910026, 341820052, 744679399, 1489358798, 2978717596, 5212755793, 10425511586, 20851023172]

約数ペア:

[(1, 20851023172), (2, 10425511586), (4, 5212755793), (7, 2978717596), (14, 1489358798), (28, 744679399), (61, 341820052), (122, 170910026), (244, 85455013), (427, 48831436), (854, 24415718), (1708, 12207859)]