19655545

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{3323}}^1$

素因数の和:3361

約数の個数: 24

約数和(自身を含む): 29198016

約数和(自身を除く): 9542471

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 455, 845, 1183, 3323, 5915, 16615, 23261, 43199, 116305, 215995, 302393, 561587, 1511965, 2807935, 3931109, 19655545]

約数ペア:

[(1, 19655545), (5, 3931109), (7, 2807935), (13, 1511965), (35, 561587), (65, 302393), (91, 215995), (169, 116305), (455, 43199), (845, 23261), (1183, 16615), (3323, 5915)]