127712921

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{307}}^1\times {\mathrm{887}}^1$

素因数の和:1268

約数の個数: 16

約数和(自身を含む): 148786176

約数和(自身を除く): 21073255

約数列:

[1, 7, 67, 307, 469, 887, 2149, 6209, 20569, 59429, 143983, 272309, 416003, 1906163, 18244703, 127712921]

約数ペア:

[(1, 127712921), (7, 18244703), (67, 1906163), (307, 416003), (469, 272309), (887, 143983), (2149, 59429), (6209, 20569)]