19519801

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{3911}}^1$

素因数の和:3972

約数の個数: 16

約数和(自身を含む): 24035328

約数和(自身を除く): 4515527

約数列:

[1, 7, 23, 31, 161, 217, 713, 3911, 4991, 27377, 89953, 121241, 629671, 848687, 2788543, 19519801]

約数ペア:

[(1, 19519801), (7, 2788543), (23, 848687), (31, 629671), (161, 121241), (217, 89953), (713, 27377), (3911, 4991)]