20553621

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{6421}}^1$

素因数の和:6532

約数の個数: 16

約数和(自身を含む): 30209088

約数和(自身を除く): 9655467

約数列:

[1, 3, 11, 33, 97, 291, 1067, 3201, 6421, 19263, 70631, 211893, 622837, 1868511, 6851207, 20553621]

約数ペア:

[(1, 20553621), (3, 6851207), (11, 1868511), (33, 622837), (97, 211893), (291, 70631), (1067, 19263), (3201, 6421)]