19867161

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1\times {\mathrm{457}}^1$

素因数の和:840

約数の個数: 16

約数和(自身を含む): 27245504

約数和(自身を除く): 7378343

約数列:

[1, 3, 43, 129, 337, 457, 1011, 1371, 14491, 19651, 43473, 58953, 154009, 462027, 6622387, 19867161]

約数ペア:

[(1, 19867161), (3, 6622387), (43, 462027), (129, 154009), (337, 58953), (457, 43473), (1011, 19651), (1371, 14491)]