20821424

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{100103}}^1$

素因数の和:100124

約数の個数: 20

約数和(自身を含む): 43445136

約数和(自身を除く): 22623712

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 100103, 200206, 400412, 800824, 1301339, 1601648, 2602678, 5205356, 10410712, 20821424]

約数ペア:

[(1, 20821424), (2, 10410712), (4, 5205356), (8, 2602678), (13, 1601648), (16, 1301339), (26, 800824), (52, 400412), (104, 200206), (208, 100103)]