18814805

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^2$

素因数の和:193

約数の個数: 24

約数和(自身を含む): 24475392

約数和(自身を除く): 5660587

約数列:

[1, 5, 23, 47, 59, 115, 235, 295, 1081, 1357, 2773, 3481, 5405, 6785, 13865, 17405, 63779, 80063, 163607, 318895, 400315, 818035, 3762961, 18814805]

約数ペア:

[(1, 18814805), (5, 3762961), (23, 818035), (47, 400315), (59, 318895), (115, 163607), (235, 80063), (295, 63779), (1081, 17405), (1357, 13865), (2773, 6785), (3481, 5405)]