31906161

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^3$

素因数の和:123

約数の個数: 48

約数和(自身を含む): 57627648

約数和(自身を除く): 25721487

約数列:

[1, 3, 7, 9, 17, 21, 31, 51, 63, 93, 119, 153, 217, 279, 357, 527, 651, 961, 1071, 1581, 1953, 2883, 3689, 4743, 6727, 8649, 11067, 16337, 20181, 29791, 33201, 49011, 60543, 89373, 114359, 147033, 208537, 268119, 343077, 506447, 625611, 1029231, 1519341, 1876833, 3545129, 4558023, 10635387, 31906161]

約数ペア:

[(1, 31906161), (3, 10635387), (7, 4558023), (9, 3545129), (17, 1876833), (21, 1519341), (31, 1029231), (51, 625611), (63, 506447), (93, 343077), (119, 268119), (153, 208537), (217, 147033), (279, 114359), (357, 89373), (527, 60543), (651, 49011), (961, 33201), (1071, 29791), (1581, 20181), (1953, 16337), (2883, 11067), (3689, 8649), (4743, 6727)]