400156929

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{260011}}^1$

素因数の和:260042

約数の個数: 20

約数和(自身を含む): 629229040

約数和(自身を除く): 229072111

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 260011, 780033, 2340099, 4940209, 7020297, 14820627, 21060891, 44461881, 133385643, 400156929]

約数ペア:

[(1, 400156929), (3, 133385643), (9, 44461881), (19, 21060891), (27, 14820627), (57, 7020297), (81, 4940209), (171, 2340099), (513, 780033), (1539, 260011)]