57131991

素因数分解:

$3^2\times 7^2\times {\mathrm{353}}^1\times {\mathrm{367}}^1$

素因数の和:740

約数の個数: 36

約数和(自身を含む): 96531552

約数和(自身を除く): 39399561

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 353, 367, 441, 1059, 1101, 2471, 2569, 3177, 3303, 7413, 7707, 17297, 17983, 22239, 23121, 51891, 53949, 129551, 155673, 161847, 388653, 906857, 1165959, 2720571, 6347999, 8161713, 19043997, 57131991]

約数ペア:

[(1, 57131991), (3, 19043997), (7, 8161713), (9, 6347999), (21, 2720571), (49, 1165959), (63, 906857), (147, 388653), (353, 161847), (367, 155673), (441, 129551), (1059, 53949), (1101, 51891), (2471, 23121), (2569, 22239), (3177, 17983), (3303, 17297), (7413, 7707)]