21888970

素因数分解:

$2^1\times 5^1\times {\mathrm{1321}}^1\times {\mathrm{1657}}^1$

素因数の和:2985

約数の個数: 16

約数和(自身を含む): 39453768

約数和(自身を除く): 17564798

約数列:

[1, 2, 5, 10, 1321, 1657, 2642, 3314, 6605, 8285, 13210, 16570, 2188897, 4377794, 10944485, 21888970]

約数ペア:

[(1, 21888970), (2, 10944485), (5, 4377794), (10, 2188897), (1321, 16570), (1657, 13210), (2642, 8285), (3314, 6605)]