20111229

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{331}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 30004832

約数和(自身を除く): 9893603

約数列:

[1, 3, 9, 43, 129, 157, 331, 387, 471, 993, 1413, 2979, 6751, 14233, 20253, 42699, 51967, 60759, 128097, 155901, 467703, 2234581, 6703743, 20111229]

約数ペア:

[(1, 20111229), (3, 6703743), (9, 2234581), (43, 467703), (129, 155901), (157, 128097), (331, 60759), (387, 51967), (471, 42699), (993, 20253), (1413, 14233), (2979, 6751)]