28489713

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{409}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 45342720

約数和(自身を除く): 16853007

約数列:

[1, 3, 7, 21, 31, 93, 107, 217, 321, 409, 651, 749, 1227, 2247, 2863, 3317, 8589, 9951, 12679, 23219, 38037, 43763, 69657, 88753, 131289, 266259, 306341, 919023, 1356653, 4069959, 9496571, 28489713]

約数ペア:

[(1, 28489713), (3, 9496571), (7, 4069959), (21, 1356653), (31, 919023), (93, 306341), (107, 266259), (217, 131289), (321, 88753), (409, 69657), (651, 43763), (749, 38037), (1227, 23219), (2247, 12679), (2863, 9951), (3317, 8589)]