28230741

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{367}}^1$

素因数の和:431

約数の個数: 64

約数和(自身を含む): 53698560

約数和(自身を除く): 25467819

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 37, 63, 77, 99, 111, 189, 231, 259, 297, 333, 367, 407, 693, 777, 999, 1101, 1221, 2079, 2331, 2569, 2849, 3303, 3663, 4037, 6993, 7707, 8547, 9909, 10989, 12111, 13579, 23121, 25641, 28259, 36333, 40737, 69363, 76923, 84777, 95053, 108999, 122211, 149369, 254331, 285159, 366633, 448107, 762993, 855477, 1045583, 1344321, 2566431, 3136749, 4032963, 9410247, 28230741]

約数ペア:

[(1, 28230741), (3, 9410247), (7, 4032963), (9, 3136749), (11, 2566431), (21, 1344321), (27, 1045583), (33, 855477), (37, 762993), (63, 448107), (77, 366633), (99, 285159), (111, 254331), (189, 149369), (231, 122211), (259, 108999), (297, 95053), (333, 84777), (367, 76923), (407, 69363), (693, 40737), (777, 36333), (999, 28259), (1101, 25641), (1221, 23121), (2079, 13579), (2331, 12111), (2569, 10989), (2849, 9909), (3303, 8547), (3663, 7707), (4037, 6993)]