18965639

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{10709}}^1$

素因数の和:10750

約数の個数: 16

約数和(自身を含む): 24675840

約数和(自身を除く): 5710201

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 10709, 74963, 117799, 246307, 824593, 1724149, 2709377, 18965639]

約数ペア:

[(1, 18965639), (7, 2709377), (11, 1724149), (23, 824593), (77, 246307), (161, 117799), (253, 74963), (1771, 10709)]