19497215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{9973}}^1$

素因数の和:10018

約数の個数: 16

約数和(自身を含む): 25852608

約数和(自身を除く): 6355393

約数列:

[1, 5, 17, 23, 85, 115, 391, 1955, 9973, 49865, 169541, 229379, 847705, 1146895, 3899443, 19497215]

約数ペア:

[(1, 19497215), (5, 3899443), (17, 1146895), (23, 847705), (85, 229379), (115, 169541), (391, 49865), (1955, 9973)]