18953168

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{91121}}^1$

素因数の和:91142

約数の個数: 20

約数和(自身を含む): 39546948

約数和(自身を除く): 20593780

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 91121, 182242, 364484, 728968, 1184573, 1457936, 2369146, 4738292, 9476584, 18953168]

約数ペア:

[(1, 18953168), (2, 9476584), (4, 4738292), (8, 2369146), (13, 1457936), (16, 1184573), (26, 728968), (52, 364484), (104, 182242), (208, 91121)]