19968669

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{13781}}^1$

素因数の和:13817

約数の個数: 24

約数和(自身を含む): 34399872

約数和(自身を除く): 14431203

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 13781, 41343, 96467, 124029, 289401, 316963, 868203, 950889, 2218741, 2852667, 6656223, 19968669]

約数ペア:

[(1, 19968669), (3, 6656223), (7, 2852667), (9, 2218741), (21, 950889), (23, 868203), (63, 316963), (69, 289401), (161, 124029), (207, 96467), (483, 41343), (1449, 13781)]