18840205

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{727}}^1$

素因数の和:876

約数の個数: 16

約数和(自身を含む): 23272704

約数和(自身を除く): 4432499

約数列:

[1, 5, 71, 73, 355, 365, 727, 3635, 5183, 25915, 51617, 53071, 258085, 265355, 3768041, 18840205]

約数ペア:

[(1, 18840205), (5, 3768041), (71, 265355), (73, 258085), (355, 53071), (365, 51617), (727, 25915), (3635, 5183)]