19670872

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2591}}^1$

素因数の和:2683

約数の個数: 32

約数和(自身を含む): 40279680

約数和(自身を除く): 20608808

約数列:

[1, 2, 4, 8, 13, 26, 52, 73, 104, 146, 292, 584, 949, 1898, 2591, 3796, 5182, 7592, 10364, 20728, 33683, 67366, 134732, 189143, 269464, 378286, 756572, 1513144, 2458859, 4917718, 9835436, 19670872]

約数ペア:

[(1, 19670872), (2, 9835436), (4, 4917718), (8, 2458859), (13, 1513144), (26, 756572), (52, 378286), (73, 269464), (104, 189143), (146, 134732), (292, 67366), (584, 33683), (949, 20728), (1898, 10364), (2591, 7592), (3796, 5182)]