1989364

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{571}}^1$

素因数の和:655

約数の個数: 24

約数和(自身を含む): 3811808

約数和(自身を除く): 1822444

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 268, 571, 871, 1142, 1742, 2284, 3484, 7423, 14846, 29692, 38257, 76514, 153028, 497341, 994682, 1989364]

約数ペア:

[(1, 1989364), (2, 994682), (4, 497341), (13, 153028), (26, 76514), (52, 38257), (67, 29692), (134, 14846), (268, 7423), (571, 3484), (871, 2284), (1142, 1742)]