19691347970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{281304971}}^1$

素因数の和:281304985

約数の個数: 16

約数和(自身を含む): 40507915968

約数和(自身を除く): 20816567998

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 281304971, 562609942, 1406524855, 1969134797, 2813049710, 3938269594, 9845673985, 19691347970]

約数ペア:

[(1, 19691347970), (2, 9845673985), (5, 3938269594), (7, 2813049710), (10, 1969134797), (14, 1406524855), (35, 562609942), (70, 281304971)]