11984005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1999}}^1$

素因数の和:2124

約数の個数: 16

約数和(自身を含む): 15840000

約数和(自身を除く): 3855995

約数列:

[1, 5, 11, 55, 109, 545, 1199, 1999, 5995, 9995, 21989, 109945, 217891, 1089455, 2396801, 11984005]

約数ペア:

[(1, 11984005), (5, 2396801), (11, 1089455), (55, 217891), (109, 109945), (545, 21989), (1199, 9995), (1999, 5995)]