20295639

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{24781}}^1$

素因数の和:24807

約数の個数: 24

約数和(自身を含む): 36082592

約数和(自身を除く): 15786953

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 24781, 74343, 173467, 223029, 322153, 520401, 966459, 1561203, 2255071, 2899377, 6765213, 20295639]

約数ペア:

[(1, 20295639), (3, 6765213), (7, 2899377), (9, 2255071), (13, 1561203), (21, 966459), (39, 520401), (63, 322153), (91, 223029), (117, 173467), (273, 74343), (819, 24781)]