19977760047

素因数分解:

$3^1\times 7^1\times {\mathrm{1039}}^1\times {\mathrm{915613}}^1$

素因数の和:916662

約数の個数: 16

約数和(自身を含む): 30471633920

約数和(自身を除く): 10493873873

約数列:

[1, 3, 7, 21, 1039, 3117, 7273, 21819, 915613, 2746839, 6409291, 19227873, 951321907, 2853965721, 6659253349, 19977760047]

約数ペア:

[(1, 19977760047), (3, 6659253349), (7, 2853965721), (21, 951321907), (1039, 19227873), (3117, 6409291), (7273, 2746839), (21819, 915613)]