18938390

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{25943}}^1$

素因数の和:26023

約数の個数: 16

約数和(自身を含む): 34557408

約数和(自身を除く): 15619018

約数列:

[1, 2, 5, 10, 73, 146, 365, 730, 25943, 51886, 129715, 259430, 1893839, 3787678, 9469195, 18938390]

約数ペア:

[(1, 18938390), (2, 9469195), (5, 3787678), (10, 1893839), (73, 259430), (146, 129715), (365, 51886), (730, 25943)]