19485991

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{953}}^1$

素因数の和:1110

約数の個数: 16

約数和(自身を含む): 23445504

約数和(自身を除く): 3959513

約数列:

[1, 7, 23, 127, 161, 889, 953, 2921, 6671, 20447, 21919, 121031, 153433, 847217, 2783713, 19485991]

約数ペア:

[(1, 19485991), (7, 2783713), (23, 847217), (127, 153433), (161, 121031), (889, 21919), (953, 20447), (2921, 6671)]