19993729

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{463}}^1$

素因数の和:700

約数の個数: 16

約数和(自身を含む): 23756800

約数和(自身を除く): 3763071

約数列:

[1, 7, 31, 199, 217, 463, 1393, 3241, 6169, 14353, 43183, 92137, 100471, 644959, 2856247, 19993729]

約数ペア:

[(1, 19993729), (7, 2856247), (31, 644959), (199, 100471), (217, 92137), (463, 43183), (1393, 14353), (3241, 6169)]