21880581

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{4423}}^1$

素因数の和:4540

約数の個数: 16

約数和(自身を含む): 31215744

約数和(自身を除く): 9335163

約数列:

[1, 3, 17, 51, 97, 291, 1649, 4423, 4947, 13269, 75191, 225573, 429031, 1287093, 7293527, 21880581]

約数ペア:

[(1, 21880581), (3, 7293527), (17, 1287093), (51, 429031), (97, 225573), (291, 75191), (1649, 13269), (4423, 4947)]