128589951

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{91393}}^1$

素因数の和:91470

約数の個数: 16

約数和(自身を含む): 198873344

約数和(自身を除く): 70283393

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 91393, 274179, 639751, 1919253, 6123331, 18369993, 42863317, 128589951]

約数ペア:

[(1, 128589951), (3, 42863317), (7, 18369993), (21, 6123331), (67, 1919253), (201, 639751), (469, 274179), (1407, 91393)]