20925968

素因数分解:

$2^4\times 7^1\times {\mathrm{257}}^1\times {\mathrm{727}}^1$

素因数の和:999

約数の個数: 40

約数和(自身を含む): 46580352

約数和(自身を除く): 25654384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 257, 514, 727, 1028, 1454, 1799, 2056, 2908, 3598, 4112, 5089, 5816, 7196, 10178, 11632, 14392, 20356, 28784, 40712, 81424, 186839, 373678, 747356, 1307873, 1494712, 2615746, 2989424, 5231492, 10462984, 20925968]

約数ペア:

[(1, 20925968), (2, 10462984), (4, 5231492), (7, 2989424), (8, 2615746), (14, 1494712), (16, 1307873), (28, 747356), (56, 373678), (112, 186839), (257, 81424), (514, 40712), (727, 28784), (1028, 20356), (1454, 14392), (1799, 11632), (2056, 10178), (2908, 7196), (3598, 5816), (4112, 5089)]