21787132311

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{142963}}^1$

素因数の和:143076

約数の個数: 48

約数和(自身を含む): 37468005120

約数和(自身を除く): 15680872809

約数列:

[1, 3, 7, 9, 21, 41, 59, 63, 123, 177, 287, 369, 413, 531, 861, 1239, 2419, 2583, 3717, 7257, 16933, 21771, 50799, 142963, 152397, 428889, 1000741, 1286667, 3002223, 5861483, 8434817, 9006669, 17584449, 25304451, 41030381, 52753347, 59043719, 75913353, 123091143, 177131157, 345827497, 369273429, 531393471, 1037482491, 2420792479, 3112447473, 7262377437, 21787132311]

約数ペア:

[(1, 21787132311), (3, 7262377437), (7, 3112447473), (9, 2420792479), (21, 1037482491), (41, 531393471), (59, 369273429), (63, 345827497), (123, 177131157), (177, 123091143), (287, 75913353), (369, 59043719), (413, 52753347), (531, 41030381), (861, 25304451), (1239, 17584449), (2419, 9006669), (2583, 8434817), (3717, 5861483), (7257, 3002223), (16933, 1286667), (21771, 1000741), (50799, 428889), (142963, 152397)]