201389139

素因数分解:

$3^3\times 7^1\times {\mathrm{421}}^1\times {\mathrm{2531}}^1$

素因数の和:2968

約数の個数: 32

約数和(自身を含む): 341921280

約数和(自身を除く): 140532141

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 421, 1263, 2531, 2947, 3789, 7593, 8841, 11367, 17717, 22779, 26523, 53151, 68337, 79569, 159453, 478359, 1065551, 3196653, 7458857, 9589959, 22376571, 28769877, 67129713, 201389139]

約数ペア:

[(1, 201389139), (3, 67129713), (7, 28769877), (9, 22376571), (21, 9589959), (27, 7458857), (63, 3196653), (189, 1065551), (421, 478359), (1263, 159453), (2531, 79569), (2947, 68337), (3789, 53151), (7593, 26523), (8841, 22779), (11367, 17717)]