20494864

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{98533}}^1$

素因数の和:98554

約数の個数: 20

約数和(自身を含む): 42763756

約数和(自身を除く): 22268892

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 98533, 197066, 394132, 788264, 1280929, 1576528, 2561858, 5123716, 10247432, 20494864]

約数ペア:

[(1, 20494864), (2, 10247432), (4, 5123716), (8, 2561858), (13, 1576528), (16, 1280929), (26, 788264), (52, 394132), (104, 197066), (208, 98533)]