19515937

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2819}}^1$

素因数の和:2892

約数の個数: 16

約数和(自身を含む): 23823360

約数和(自身を除く): 4307423

約数列:

[1, 7, 23, 43, 161, 301, 989, 2819, 6923, 19733, 64837, 121217, 453859, 848519, 2787991, 19515937]

約数ペア:

[(1, 19515937), (7, 2787991), (23, 848519), (43, 453859), (161, 121217), (301, 64837), (989, 19733), (2819, 6923)]