15661904121

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{2885923}}^1$

素因数の和:2886002

約数の個数: 20

約数和(自身を含む): 23745382672

約数和(自身を除く): 8083478551

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5427, 2885923, 8657769, 25973307, 77919921, 193356841, 233759763, 580070523, 1740211569, 5220634707, 15661904121]

約数ペア:

[(1, 15661904121), (3, 5220634707), (9, 1740211569), (27, 580070523), (67, 233759763), (81, 193356841), (201, 77919921), (603, 25973307), (1809, 8657769), (5427, 2885923)]