129664388

素因数分解:

$2^2\times 7^2\times {\mathrm{661553}}^1$

素因数の和:661571

約数の個数: 18

約数和(自身を含む): 263960046

約数和(自身を除く): 134295658

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 661553, 1323106, 2646212, 4630871, 9261742, 18523484, 32416097, 64832194, 129664388]

約数ペア:

[(1, 129664388), (2, 64832194), (4, 32416097), (7, 18523484), (14, 9261742), (28, 4630871), (49, 2646212), (98, 1323106), (196, 661553)]