19711312

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{8863}}^1$

素因数の和:9010

約数の個数: 20

約数和(自身を含む): 38469760

約数和(自身を除く): 18758448

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 8863, 17726, 35452, 70904, 141808, 1231957, 2463914, 4927828, 9855656, 19711312]

約数ペア:

[(1, 19711312), (2, 9855656), (4, 4927828), (8, 2463914), (16, 1231957), (139, 141808), (278, 70904), (556, 35452), (1112, 17726), (2224, 8863)]