21979370

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{313991}}^1$

素因数の和:314005

約数の個数: 16

約数和(自身を含む): 45214848

約数和(自身を除く): 23235478

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 313991, 627982, 1569955, 2197937, 3139910, 4395874, 10989685, 21979370]

約数ペア:

[(1, 21979370), (2, 10989685), (5, 4395874), (7, 3139910), (10, 2197937), (14, 1569955), (35, 627982), (70, 313991)]