19428208

素因数分解:

$2^4\times {\mathrm{443}}^1\times {\mathrm{2741}}^1$

素因数の和:3192

約数の個数: 20

約数和(自身を含む): 37740888

約数和(自身を除く): 18312680

約数列:

[1, 2, 4, 8, 16, 443, 886, 1772, 2741, 3544, 5482, 7088, 10964, 21928, 43856, 1214263, 2428526, 4857052, 9714104, 19428208]

約数ペア:

[(1, 19428208), (2, 9714104), (4, 4857052), (8, 2428526), (16, 1214263), (443, 43856), (886, 21928), (1772, 10964), (2741, 7088), (3544, 5482)]