215380484

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{445001}}^1$

素因数の和:445027

約数の個数: 18

約数和(自身を含む): 414296862

約数和(自身を除く): 198916378

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 445001, 890002, 1780004, 4895011, 9790022, 19580044, 53845121, 107690242, 215380484]

約数ペア:

[(1, 215380484), (2, 107690242), (4, 53845121), (11, 19580044), (22, 9790022), (44, 4895011), (121, 1780004), (242, 890002), (484, 445001)]