199386873

素因数分解:

$3^3\times 7^1\times {\mathrm{1054957}}^1$

素因数の和:1054973

約数の個数: 16

約数和(自身を含む): 337586560

約数和(自身を除く): 138199687

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 1054957, 3164871, 7384699, 9494613, 22154097, 28483839, 66462291, 199386873]

約数ペア:

[(1, 199386873), (3, 66462291), (7, 28483839), (9, 22154097), (21, 9494613), (27, 7384699), (63, 3164871), (189, 1054957)]