28707237

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{283}}^1$

素因数の和:339

約数の個数: 48

約数和(自身を含む): 48825280

約数和(自身を除く): 20118043

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 117, 153, 221, 283, 289, 351, 459, 663, 849, 867, 1989, 2547, 2601, 3679, 3757, 4811, 5967, 7641, 7803, 11037, 11271, 14433, 33111, 33813, 43299, 62543, 81787, 99333, 101439, 129897, 187629, 245361, 562887, 736083, 1063231, 1688661, 2208249, 3189693, 9569079, 28707237]

約数ペア:

[(1, 28707237), (3, 9569079), (9, 3189693), (13, 2208249), (17, 1688661), (27, 1063231), (39, 736083), (51, 562887), (117, 245361), (153, 187629), (221, 129897), (283, 101439), (289, 99333), (351, 81787), (459, 62543), (663, 43299), (849, 33813), (867, 33111), (1989, 14433), (2547, 11271), (2601, 11037), (3679, 7803), (3757, 7641), (4811, 5967)]