19916936

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{191509}}^1$

素因数の和:191528

約数の個数: 16

約数和(自身を含む): 40217100

約数和(自身を除く): 20300164

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 191509, 383018, 766036, 1532072, 2489617, 4979234, 9958468, 19916936]

約数ペア:

[(1, 19916936), (2, 9958468), (4, 4979234), (8, 2489617), (13, 1532072), (26, 766036), (52, 383018), (104, 191509)]