3898881

素因数分解:

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

素因数の和:451

約数の個数: 32

約数和(自身を含む): 6752000

約数和(自身を除く): 2853119

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 343, 421, 441, 1029, 1263, 1323, 2947, 3087, 3789, 8841, 9261, 11367, 20629, 26523, 61887, 79569, 144403, 185661, 433209, 556983, 1299627, 3898881]

約数ペア:

[(1, 3898881), (3, 1299627), (7, 556983), (9, 433209), (21, 185661), (27, 144403), (49, 79569), (63, 61887), (147, 26523), (189, 20629), (343, 11367), (421, 9261), (441, 8841), (1029, 3789), (1263, 3087), (1323, 2947)]