19117072

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{91909}}^1$

素因数の和:91930

約数の個数: 20

約数和(自身を含む): 39888940

約数和(自身を除く): 20771868

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 91909, 183818, 367636, 735272, 1194817, 1470544, 2389634, 4779268, 9558536, 19117072]

約数ペア:

[(1, 19117072), (2, 9558536), (4, 4779268), (8, 2389634), (13, 1470544), (16, 1194817), (26, 735272), (52, 367636), (104, 183818), (208, 91909)]