19938079

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{3347}}^1$

素因数の和:3414

約数の個数: 16

約数和(自身を含む): 24427008

約数和(自身を除く): 4488929

約数列:

[1, 7, 23, 37, 161, 259, 851, 3347, 5957, 23429, 76981, 123839, 538867, 866873, 2848297, 19938079]

約数ペア:

[(1, 19938079), (7, 2848297), (23, 866873), (37, 538867), (161, 123839), (259, 76981), (851, 23429), (3347, 5957)]