20664496

素因数分解:

$2^4\times {\mathrm{211}}^1\times {\mathrm{6121}}^1$

素因数の和:6340

約数の個数: 20

約数和(自身を含む): 40233784

約数和(自身を除く): 19569288

約数列:

[1, 2, 4, 8, 16, 211, 422, 844, 1688, 3376, 6121, 12242, 24484, 48968, 97936, 1291531, 2583062, 5166124, 10332248, 20664496]

約数ペア:

[(1, 20664496), (2, 10332248), (4, 5166124), (8, 2583062), (16, 1291531), (211, 97936), (422, 48968), (844, 24484), (1688, 12242), (3376, 6121)]