20657936

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{99317}}^1$

素因数の和:99338

約数の個数: 20

約数和(自身を含む): 43104012

約数和(自身を除く): 22446076

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 99317, 198634, 397268, 794536, 1291121, 1589072, 2582242, 5164484, 10328968, 20657936]

約数ペア:

[(1, 20657936), (2, 10328968), (4, 5164484), (8, 2582242), (13, 1589072), (16, 1291121), (26, 794536), (52, 397268), (104, 198634), (208, 99317)]