18619489

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{1061}}^1$

素因数の和:1200

約数の個数: 16

約数和(自身を含む): 22429440

約数和(自身を除く): 3809951

約数列:

[1, 7, 23, 109, 161, 763, 1061, 2507, 7427, 17549, 24403, 115649, 170821, 809543, 2659927, 18619489]

約数ペア:

[(1, 18619489), (7, 2659927), (23, 809543), (109, 170821), (161, 115649), (763, 24403), (1061, 17549), (2507, 7427)]