21218970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{707299}}^1$

素因数の和:707309

約数の個数: 16

約数和(自身を含む): 50925600

約数和(自身を除く): 29706630

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 707299, 1414598, 2121897, 3536495, 4243794, 7072990, 10609485, 21218970]

約数ペア:

[(1, 21218970), (2, 10609485), (3, 7072990), (5, 4243794), (6, 3536495), (10, 2121897), (15, 1414598), (30, 707299)]