20706795

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6481}}^1$

素因数の和:6563

約数の個数: 24

約数和(自身を含む): 36402912

約数和(自身を除く): 15696117

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 6481, 19443, 32405, 58329, 97215, 291645, 460151, 1380453, 2300755, 4141359, 6902265, 20706795]

約数ペア:

[(1, 20706795), (3, 6902265), (5, 4141359), (9, 2300755), (15, 1380453), (45, 460151), (71, 291645), (213, 97215), (355, 58329), (639, 32405), (1065, 19443), (3195, 6481)]