18954416

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{91127}}^1$

素因数の和:91148

約数の個数: 20

約数和(自身を含む): 39549552

約数和(自身を除く): 20595136

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 91127, 182254, 364508, 729016, 1184651, 1458032, 2369302, 4738604, 9477208, 18954416]

約数ペア:

[(1, 18954416), (2, 9477208), (4, 4738604), (8, 2369302), (13, 1458032), (16, 1184651), (26, 729016), (52, 364508), (104, 182254), (208, 91127)]