20761708

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{1213}}^1$

素因数の和:1617

約数の個数: 24

約数和(自身を含む): 39770640

約数和(自身を除く): 19008932

約数列:

[1, 2, 4, 11, 22, 44, 389, 778, 1213, 1556, 2426, 4279, 4852, 8558, 13343, 17116, 26686, 53372, 471857, 943714, 1887428, 5190427, 10380854, 20761708]

約数ペア:

[(1, 20761708), (2, 10380854), (4, 5190427), (11, 1887428), (22, 943714), (44, 471857), (389, 53372), (778, 26686), (1213, 17116), (1556, 13343), (2426, 8558), (4279, 4852)]