19773845

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{3343}}^1$

素因数の和:3381

約数の個数: 24

約数和(自身を含む): 29373696

約数和(自身を除く): 9599851

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 455, 845, 1183, 3343, 5915, 16715, 23401, 43459, 117005, 217295, 304213, 564967, 1521065, 2824835, 3954769, 19773845]

約数ペア:

[(1, 19773845), (5, 3954769), (7, 2824835), (13, 1521065), (35, 564967), (65, 304213), (91, 217295), (169, 117005), (455, 43459), (845, 23401), (1183, 16715), (3343, 5915)]