20217989

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{509}}^1$

素因数の和:700

約数の個数: 16

約数和(自身を含む): 23207040

約数和(自身を除く): 2989051

約数列:

[1, 11, 23, 157, 253, 509, 1727, 3611, 5599, 11707, 39721, 79913, 128777, 879043, 1837999, 20217989]

約数ペア:

[(1, 20217989), (11, 1837999), (23, 879043), (157, 128777), (253, 79913), (509, 39721), (1727, 11707), (3611, 5599)]