20999927

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{487}}^1$

素因数の和:638

約数の個数: 16

約数和(自身を含む): 23611392

約数和(自身を除く): 2611465

約数列:

[1, 13, 31, 107, 403, 487, 1391, 3317, 6331, 15097, 43121, 52109, 196261, 677417, 1615379, 20999927]

約数ペア:

[(1, 20999927), (13, 1615379), (31, 677417), (107, 196261), (403, 52109), (487, 43121), (1391, 15097), (3317, 6331)]