19117912

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2441}}^1$

素因数の和:2547

約数の個数: 32

約数和(自身を含む): 39560400

約数和(自身を除く): 20442488

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 89, 178, 356, 712, 979, 1958, 2441, 3916, 4882, 7832, 9764, 19528, 26851, 53702, 107404, 214808, 217249, 434498, 868996, 1737992, 2389739, 4779478, 9558956, 19117912]

約数ペア:

[(1, 19117912), (2, 9558956), (4, 4779478), (8, 2389739), (11, 1737992), (22, 868996), (44, 434498), (88, 217249), (89, 214808), (178, 107404), (356, 53702), (712, 26851), (979, 19528), (1958, 9764), (2441, 7832), (3916, 4882)]