19981222

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{359}}^1\times {\mathrm{1637}}^1$

素因数の和:2015

約数の個数: 16

約数和(自身を含む): 31842720

約数和(自身を除く): 11861498

約数列:

[1, 2, 17, 34, 359, 718, 1637, 3274, 6103, 12206, 27829, 55658, 587683, 1175366, 9990611, 19981222]

約数ペア:

[(1, 19981222), (2, 9990611), (17, 1175366), (34, 587683), (359, 55658), (718, 27829), (1637, 12206), (3274, 6103)]