19916809

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1459}}^1$

素因数の和:1560

約数の個数: 16

約数和(自身を含む): 23336640

約数和(自身を除く): 3419831

約数列:

[1, 11, 17, 73, 187, 803, 1241, 1459, 13651, 16049, 24803, 106507, 272833, 1171577, 1810619, 19916809]

約数ペア:

[(1, 19916809), (11, 1810619), (17, 1171577), (73, 272833), (187, 106507), (803, 24803), (1241, 16049), (1459, 13651)]