19896751

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{293}}^1$

素因数の和:498

約数の個数: 16

約数和(自身を含む): 23284800

約数和(自身を除く): 3388049

約数列:

[1, 7, 89, 109, 293, 623, 763, 2051, 9701, 26077, 31937, 67907, 182539, 223559, 2842393, 19896751]

約数ペア:

[(1, 19896751), (7, 2842393), (89, 223559), (109, 182539), (293, 67907), (623, 31937), (763, 26077), (2051, 9701)]