19291216

素因数分解:

$2^4\times 7^1\times {\mathrm{172243}}^1$

素因数の和:172258

約数の個数: 20

約数和(自身を含む): 42716512

約数和(自身を除く): 23425296

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 172243, 344486, 688972, 1205701, 1377944, 2411402, 2755888, 4822804, 9645608, 19291216]

約数ペア:

[(1, 19291216), (2, 9645608), (4, 4822804), (7, 2755888), (8, 2411402), (14, 1377944), (16, 1205701), (28, 688972), (56, 344486), (112, 172243)]