205963317

素因数分解:

$3^4\times 7^2\times {\mathrm{51893}}^1$

素因数の和:51919

約数の個数: 30

約数和(自身を含む): 357912918

約数和(自身を除く): 151949601

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 51893, 155679, 363251, 467037, 1089753, 1401111, 2542757, 3269259, 4203333, 7628271, 9807777, 22884813, 29423331, 68654439, 205963317]

約数ペア:

[(1, 205963317), (3, 68654439), (7, 29423331), (9, 22884813), (21, 9807777), (27, 7628271), (49, 4203333), (63, 3269259), (81, 2542757), (147, 1401111), (189, 1089753), (441, 467037), (567, 363251), (1323, 155679), (3969, 51893)]