18899504

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{90863}}^1$

素因数の和:90884

約数の個数: 20

約数和(自身を含む): 39434976

約数和(自身を除く): 20535472

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 90863, 181726, 363452, 726904, 1181219, 1453808, 2362438, 4724876, 9449752, 18899504]

約数ペア:

[(1, 18899504), (2, 9449752), (4, 4724876), (8, 2362438), (13, 1453808), (16, 1181219), (26, 726904), (52, 363452), (104, 181726), (208, 90863)]