19401235

素因数分解:

$5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{3671}}^1$

素因数の和:3834

約数の個数: 16

約数和(自身を含む): 26790912

約数和(自身を除く): 7389677

約数列:

[1, 5, 7, 35, 151, 755, 1057, 3671, 5285, 18355, 25697, 128485, 554321, 2771605, 3880247, 19401235]

約数ペア:

[(1, 19401235), (5, 3880247), (7, 2771605), (35, 554321), (151, 128485), (755, 25697), (1057, 18355), (3671, 5285)]