1981161

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:126

約数の個数: 48

約数和(自身を含む): 3669120

約数和(自身を除く): 1687959

約数列:

[1, 3, 7, 9, 13, 21, 39, 41, 59, 63, 91, 117, 123, 177, 273, 287, 369, 413, 531, 533, 767, 819, 861, 1239, 1599, 2301, 2419, 2583, 3717, 3731, 4797, 5369, 6903, 7257, 11193, 16107, 16933, 21771, 31447, 33579, 48321, 50799, 94341, 152397, 220129, 283023, 660387, 1981161]

約数ペア:

[(1, 1981161), (3, 660387), (7, 283023), (9, 220129), (13, 152397), (21, 94341), (39, 50799), (41, 48321), (59, 33579), (63, 31447), (91, 21771), (117, 16933), (123, 16107), (177, 11193), (273, 7257), (287, 6903), (369, 5369), (413, 4797), (531, 3731), (533, 3717), (767, 2583), (819, 2419), (861, 2301), (1239, 1599)]