28937168

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{139121}}^1$

素因数の和:139142

約数の個数: 20

約数和(自身を含む): 60378948

約数和(自身を除く): 31441780

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 139121, 278242, 556484, 1112968, 1808573, 2225936, 3617146, 7234292, 14468584, 28937168]

約数ペア:

[(1, 28937168), (2, 14468584), (4, 7234292), (8, 3617146), (13, 2225936), (16, 1808573), (26, 1112968), (52, 556484), (104, 278242), (208, 139121)]