21494584

素因数分解:

$2^3\times {\mathrm{389}}^1\times {\mathrm{6907}}^1$

素因数の和:7302

約数の個数: 16

約数和(自身を含む): 40411800

約数和(自身を除く): 18917216

約数列:

[1, 2, 4, 8, 389, 778, 1556, 3112, 6907, 13814, 27628, 55256, 2686823, 5373646, 10747292, 21494584]

約数ペア:

[(1, 21494584), (2, 10747292), (4, 5373646), (8, 2686823), (389, 55256), (778, 27628), (1556, 13814), (3112, 6907)]