20121747513

素因数分解:

$3^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{2745497}}^1$

素因数の和:2745856

約数の個数: 16

約数和(自身を含む): 30749577600

約数和(自身を除く): 10627830087

約数列:

[1, 3, 7, 21, 349, 1047, 2443, 7329, 2745497, 8236491, 19218479, 57655437, 958178453, 2874535359, 6707249171, 20121747513]

約数ペア:

[(1, 20121747513), (3, 6707249171), (7, 2874535359), (21, 958178453), (349, 57655437), (1047, 19218479), (2443, 8236491), (7329, 2745497)]