21012990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{700433}}^1$

素因数の和:700443

約数の個数: 16

約数和(自身を含む): 50431248

約数和(自身を除く): 29418258

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 700433, 1400866, 2101299, 3502165, 4202598, 7004330, 10506495, 21012990]

約数ペア:

[(1, 21012990), (2, 10506495), (3, 7004330), (5, 4202598), (6, 3502165), (10, 2101299), (15, 1400866), (30, 700433)]