18146961

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4057}}^1$

素因数の和:4141

約数の個数: 24

約数和(自身を含む): 30386304

約数和(自身を除く): 12239343

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4057, 4473, 12171, 28399, 36513, 85197, 255591, 288047, 864141, 2016329, 2592423, 6048987, 18146961]

約数ペア:

[(1, 18146961), (3, 6048987), (7, 2592423), (9, 2016329), (21, 864141), (63, 288047), (71, 255591), (213, 85197), (497, 36513), (639, 28399), (1491, 12171), (4057, 4473)]