19893424

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{11003}}^1$

素因数の和:11124

約数の個数: 20

約数和(自身を含む): 38888136

約数和(自身を除く): 18994712

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 11003, 22006, 44012, 88024, 176048, 1243339, 2486678, 4973356, 9946712, 19893424]

約数ペア:

[(1, 19893424), (2, 9946712), (4, 4973356), (8, 2486678), (16, 1243339), (113, 176048), (226, 88024), (452, 44012), (904, 22006), (1808, 11003)]