206870841

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7907}}^1$

素因数の和:7955

約数の個数: 40

約数和(自身を含む): 344472480

約数和(自身を除く): 137601639

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 81, 153, 171, 323, 459, 513, 969, 1377, 1539, 2907, 7907, 8721, 23721, 26163, 71163, 134419, 150233, 213489, 403257, 450699, 640467, 1209771, 1352097, 2553961, 3629313, 4056291, 7661883, 10887939, 12168873, 22985649, 68956947, 206870841]

約数ペア:

[(1, 206870841), (3, 68956947), (9, 22985649), (17, 12168873), (19, 10887939), (27, 7661883), (51, 4056291), (57, 3629313), (81, 2553961), (153, 1352097), (171, 1209771), (323, 640467), (459, 450699), (513, 403257), (969, 213489), (1377, 150233), (1539, 134419), (2907, 71163), (7907, 26163), (8721, 23721)]