19826667

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4561}}^1$

素因数の和:4600

約数の個数: 32

約数和(自身を含む): 35036160

約数和(自身を除く): 15209493

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 207, 483, 621, 1449, 4347, 4561, 13683, 31927, 41049, 95781, 104903, 123147, 287343, 314709, 734321, 862029, 944127, 2202963, 2832381, 6608889, 19826667]

約数ペア:

[(1, 19826667), (3, 6608889), (7, 2832381), (9, 2202963), (21, 944127), (23, 862029), (27, 734321), (63, 314709), (69, 287343), (161, 123147), (189, 104903), (207, 95781), (483, 41049), (621, 31927), (1449, 13683), (4347, 4561)]