28399371

素因数分解:

$3^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1$

素因数の和:241

約数の個数: 64

約数和(自身を含む): 52147200

約数和(自身を除く): 23747829

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 49, 77, 91, 143, 147, 193, 231, 273, 343, 429, 539, 579, 637, 1001, 1029, 1351, 1617, 1911, 2123, 2509, 3003, 3773, 4053, 4459, 6369, 7007, 7527, 9457, 11319, 13377, 14861, 17563, 21021, 27599, 28371, 44583, 49049, 52689, 66199, 82797, 104027, 122941, 147147, 193193, 198597, 312081, 368823, 579579, 728189, 860587, 1352351, 2184567, 2581761, 4057053, 9466457, 28399371]

約数ペア:

[(1, 28399371), (3, 9466457), (7, 4057053), (11, 2581761), (13, 2184567), (21, 1352351), (33, 860587), (39, 728189), (49, 579579), (77, 368823), (91, 312081), (143, 198597), (147, 193193), (193, 147147), (231, 122941), (273, 104027), (343, 82797), (429, 66199), (539, 52689), (579, 49049), (637, 44583), (1001, 28371), (1029, 27599), (1351, 21021), (1617, 17563), (1911, 14861), (2123, 13377), (2509, 11319), (3003, 9457), (3773, 7527), (4053, 7007), (4459, 6369)]