19916732

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{1297}}^1$

素因数の和:1661

約数の個数: 24

約数和(自身を含む): 38161200

約数和(自身を除く): 18244468

約数列:

[1, 2, 4, 11, 22, 44, 349, 698, 1297, 1396, 2594, 3839, 5188, 7678, 14267, 15356, 28534, 57068, 452653, 905306, 1810612, 4979183, 9958366, 19916732]

約数ペア:

[(1, 19916732), (2, 9958366), (4, 4979183), (11, 1810612), (22, 905306), (44, 452653), (349, 57068), (698, 28534), (1297, 15356), (1396, 14267), (2594, 7678), (3839, 5188)]