19940011

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1361}}^1$

素因数の和:1411

約数の個数: 24

約数和(自身を含む): 26085024

約数和(自身を除く): 6145013

約数列:

[1, 7, 13, 23, 49, 91, 161, 299, 637, 1127, 1361, 2093, 9527, 14651, 17693, 31303, 66689, 123851, 219121, 406939, 866957, 1533847, 2848573, 19940011]

約数ペア:

[(1, 19940011), (7, 2848573), (13, 1533847), (23, 866957), (49, 406939), (91, 219121), (161, 123851), (299, 66689), (637, 31303), (1127, 17693), (1361, 14651), (2093, 9527)]