28867881

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{701}}^1$

素因数の和:801

約数の個数: 32

約数和(自身を含む): 46096128

約数和(自身を除く): 17228247

約数列:

[1, 3, 7, 21, 37, 53, 111, 159, 259, 371, 701, 777, 1113, 1961, 2103, 4907, 5883, 13727, 14721, 25937, 37153, 41181, 77811, 111459, 181559, 260071, 544677, 780213, 1374661, 4123983, 9622627, 28867881]

約数ペア:

[(1, 28867881), (3, 9622627), (7, 4123983), (21, 1374661), (37, 780213), (53, 544677), (111, 260071), (159, 181559), (259, 111459), (371, 77811), (701, 41181), (777, 37153), (1113, 25937), (1961, 14721), (2103, 13727), (4907, 5883)]