31426857

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{449}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 57283200

約数和(自身を除く): 25856343

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 101, 231, 303, 449, 693, 707, 909, 1111, 1347, 2121, 3143, 3333, 4041, 4939, 6363, 7777, 9429, 9999, 14817, 23331, 28287, 34573, 44451, 45349, 69993, 103719, 136047, 311157, 317443, 408141, 498839, 952329, 1496517, 2856987, 3491873, 4489551, 10475619, 31426857]

約数ペア:

[(1, 31426857), (3, 10475619), (7, 4489551), (9, 3491873), (11, 2856987), (21, 1496517), (33, 952329), (63, 498839), (77, 408141), (99, 317443), (101, 311157), (231, 136047), (303, 103719), (449, 69993), (693, 45349), (707, 44451), (909, 34573), (1111, 28287), (1347, 23331), (2121, 14817), (3143, 9999), (3333, 9429), (4041, 7777), (4939, 6363)]