128425717

素因数分解:

$7^3\times {\mathrm{29}}^1\times {\mathrm{12911}}^1$

素因数の和:12961

約数の個数: 16

約数和(自身を含む): 154944000

約数和(自身を除く): 26518283

約数列:

[1, 7, 29, 49, 203, 343, 1421, 9947, 12911, 90377, 374419, 632639, 2620933, 4428473, 18346531, 128425717]

約数ペア:

[(1, 128425717), (7, 18346531), (29, 4428473), (49, 2620933), (203, 632639), (343, 374419), (1421, 90377), (9947, 12911)]