20408976007

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{1279319}}^1$

素因数の和:1279422

約数の個数: 16

約数和(自身を含む): 24317314560

約数和(自身を除く): 3908338553

約数列:

[1, 7, 43, 53, 301, 371, 2279, 15953, 1279319, 8955233, 55010717, 67803907, 385075019, 474627349, 2915568001, 20408976007]

約数ペア:

[(1, 20408976007), (7, 2915568001), (43, 474627349), (53, 385075019), (301, 67803907), (371, 55010717), (2279, 8955233), (15953, 1279319)]