19419664

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{110339}}^1$

素因数の和:110358

約数の個数: 20

約数和(自身を含む): 41046480

約数和(自身を除く): 21626816

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 110339, 220678, 441356, 882712, 1213729, 1765424, 2427458, 4854916, 9709832, 19419664]

約数ペア:

[(1, 19419664), (2, 9709832), (4, 4854916), (8, 2427458), (11, 1765424), (16, 1213729), (22, 882712), (44, 441356), (88, 220678), (176, 110339)]