16447221

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3677}}^1$

素因数の和:3761

約数の個数: 24

約数和(自身を含む): 27540864

約数和(自身を除く): 11093643

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 3677, 4473, 11031, 25739, 33093, 77217, 231651, 261067, 783201, 1827469, 2349603, 5482407, 16447221]

約数ペア:

[(1, 16447221), (3, 5482407), (7, 2349603), (9, 1827469), (21, 783201), (63, 261067), (71, 231651), (213, 77217), (497, 33093), (639, 25739), (1491, 11031), (3677, 4473)]