20920612

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:531

約数の個数: 24

約数和(自身を含む): 37255680

約数和(自身を除く): 16335068

約数列:

[1, 2, 4, 139, 191, 197, 278, 382, 394, 556, 764, 788, 26549, 27383, 37627, 53098, 54766, 75254, 106196, 109532, 150508, 5230153, 10460306, 20920612]

約数ペア:

[(1, 20920612), (2, 10460306), (4, 5230153), (139, 150508), (191, 109532), (197, 106196), (278, 75254), (382, 54766), (394, 53098), (556, 37627), (764, 27383), (788, 26549)]