16393881

素因数分解:

$3^1\times 7^2\times {\mathrm{229}}^1\times {\mathrm{487}}^1$

素因数の和:733

約数の個数: 24

約数和(自身を含む): 25590720

約数和(自身を除く): 9196839

約数列:

[1, 3, 7, 21, 49, 147, 229, 487, 687, 1461, 1603, 3409, 4809, 10227, 11221, 23863, 33663, 71589, 111523, 334569, 780661, 2341983, 5464627, 16393881]

約数ペア:

[(1, 16393881), (3, 5464627), (7, 2341983), (21, 780661), (49, 334569), (147, 111523), (229, 71589), (487, 33663), (687, 23863), (1461, 11221), (1603, 10227), (3409, 4809)]