2109989

素因数分解:

$7^2\times {\mathrm{17}}^2\times {\mathrm{149}}^1$

素因数の和:197

約数の個数: 18

約数和(自身を含む): 2624850

約数和(自身を除く): 514861

約数列:

[1, 7, 17, 49, 119, 149, 289, 833, 1043, 2023, 2533, 7301, 14161, 17731, 43061, 124117, 301427, 2109989]

約数ペア:

[(1, 2109989), (7, 301427), (17, 124117), (49, 43061), (119, 17731), (149, 14161), (289, 7301), (833, 2533), (1043, 2023)]