19770685

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{15629}}^1$

素因数の和:15668

約数の個数: 16

約数和(自身を含む): 27008640

約数和(自身を除く): 7237955

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 15629, 78145, 171919, 359467, 859595, 1797335, 3954137, 19770685]

約数ペア:

[(1, 19770685), (5, 3954137), (11, 1797335), (23, 859595), (55, 359467), (115, 171919), (253, 78145), (1265, 15629)]