31372929

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{313}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 54600832

約数和(自身を除く): 23227903

約数列:

[1, 3, 7, 9, 21, 37, 43, 63, 111, 129, 259, 301, 313, 333, 387, 777, 903, 939, 1591, 2191, 2331, 2709, 2817, 4773, 6573, 11137, 11581, 13459, 14319, 19719, 33411, 34743, 40377, 81067, 94213, 100233, 104229, 121131, 243201, 282639, 497983, 729603, 847917, 1493949, 3485881, 4481847, 10457643, 31372929]

約数ペア:

[(1, 31372929), (3, 10457643), (7, 4481847), (9, 3485881), (21, 1493949), (37, 847917), (43, 729603), (63, 497983), (111, 282639), (129, 243201), (259, 121131), (301, 104229), (313, 100233), (333, 94213), (387, 81067), (777, 40377), (903, 34743), (939, 33411), (1591, 19719), (2191, 14319), (2331, 13459), (2709, 11581), (2817, 11137), (4773, 6573)]