638828913

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{71147}}^1$

素因数の和:71264

約数の個数: 16

約数和(自身を含む): 884511936

約数和(自身を除く): 245683023

約数列:

[1, 3, 41, 73, 123, 219, 2993, 8979, 71147, 213441, 2917027, 5193731, 8751081, 15581193, 212942971, 638828913]

約数ペア:

[(1, 638828913), (3, 212942971), (41, 15581193), (73, 8751081), (123, 5193731), (219, 2917027), (2993, 213441), (8979, 71147)]