51613328

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{248141}}^1$

素因数の和:248162

約数の個数: 20

約数和(自身を含む): 107693628

約数和(自身を除く): 56080300

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 248141, 496282, 992564, 1985128, 3225833, 3970256, 6451666, 12903332, 25806664, 51613328]

約数ペア:

[(1, 51613328), (2, 25806664), (4, 12903332), (8, 6451666), (13, 3970256), (16, 3225833), (26, 1985128), (52, 992564), (104, 496282), (208, 248141)]