31986423

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{7151}}^1$

素因数の和:7235

約数の個数: 24

約数和(自身を含む): 53554176

約数和(自身を除く): 21567753

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 7151, 21453, 50057, 64359, 150171, 450513, 507721, 1523163, 3554047, 4569489, 10662141, 31986423]

約数ペア:

[(1, 31986423), (3, 10662141), (7, 4569489), (9, 3554047), (21, 1523163), (63, 507721), (71, 450513), (213, 150171), (497, 64359), (639, 50057), (1491, 21453), (4473, 7151)]