13720588

素因数分解:

$2^2\times 7^2\times {\mathrm{70003}}^1$

素因数の和:70021

約数の個数: 18

約数和(自身を含む): 27931596

約数和(自身を除く): 14211008

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 70003, 140006, 280012, 490021, 980042, 1960084, 3430147, 6860294, 13720588]

約数ペア:

[(1, 13720588), (2, 6860294), (4, 3430147), (7, 1960084), (14, 980042), (28, 490021), (49, 280012), (98, 140006), (196, 70003)]