644556957

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 972155520

約数和(自身を除く): 327598563

約数列:

[1, 3, 11, 33, 71, 89, 121, 213, 267, 281, 363, 781, 843, 979, 2343, 2937, 3091, 6319, 8591, 9273, 10769, 18957, 19951, 25009, 25773, 32307, 34001, 59853, 69509, 75027, 102003, 208527, 219461, 275099, 658383, 764599, 825297, 1775639, 2293797, 2414071, 3026089, 5326917, 7242213, 9078267, 19532029, 58596087, 214852319, 644556957]

約数ペア:

[(1, 644556957), (3, 214852319), (11, 58596087), (33, 19532029), (71, 9078267), (89, 7242213), (121, 5326917), (213, 3026089), (267, 2414071), (281, 2293797), (363, 1775639), (781, 825297), (843, 764599), (979, 658383), (2343, 275099), (2937, 219461), (3091, 208527), (6319, 102003), (8591, 75027), (9273, 69509), (10769, 59853), (18957, 34001), (19951, 32307), (25009, 25773)]