18871210

素因数分解:

$2^1\times 5^1\times {\mathrm{691}}^1\times {\mathrm{2731}}^1$

素因数の和:3429

約数の個数: 16

約数和(自身を含む): 34029792

約数和(自身を除く): 15158582

約数列:

[1, 2, 5, 10, 691, 1382, 2731, 3455, 5462, 6910, 13655, 27310, 1887121, 3774242, 9435605, 18871210]

約数ペア:

[(1, 18871210), (2, 9435605), (5, 3774242), (10, 1887121), (691, 27310), (1382, 13655), (2731, 6910), (3455, 5462)]