20978254

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{3769}}^1$

素因数の和:3816

約数の個数: 24

約数和(自身を含む): 36101520

約数和(自身を除く): 15123266

約数列:

[1, 2, 11, 22, 23, 46, 121, 242, 253, 506, 2783, 3769, 5566, 7538, 41459, 82918, 86687, 173374, 456049, 912098, 953557, 1907114, 10489127, 20978254]

約数ペア:

[(1, 20978254), (2, 10489127), (11, 1907114), (22, 953557), (23, 912098), (46, 456049), (121, 173374), (242, 86687), (253, 82918), (506, 41459), (2783, 7538), (3769, 5566)]