287781

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:220

約数の個数: 16

約数和(自身を含む): 424704

約数和(自身を除く): 136923

約数列:

[1, 3, 13, 39, 47, 141, 157, 471, 611, 1833, 2041, 6123, 7379, 22137, 95927, 287781]

約数ペア:

[(1, 287781), (3, 95927), (13, 22137), (39, 7379), (47, 6123), (141, 2041), (157, 1833), (471, 611)]