39919971

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:196

約数の個数: 64

約数和(自身を含む): 69672960

約数和(自身を除く): 29752989

約数列:

[1, 3, 7, 13, 21, 31, 39, 53, 89, 91, 93, 159, 217, 267, 273, 371, 403, 623, 651, 689, 1113, 1157, 1209, 1643, 1869, 2067, 2759, 2821, 3471, 4717, 4823, 4929, 8099, 8277, 8463, 11501, 14151, 14469, 19313, 21359, 24297, 33019, 34503, 35867, 57939, 61321, 64077, 99057, 107601, 146227, 149513, 183963, 251069, 429247, 438681, 448539, 753207, 1023589, 1287741, 1900951, 3070767, 5702853, 13306657, 39919971]

約数ペア:

[(1, 39919971), (3, 13306657), (7, 5702853), (13, 3070767), (21, 1900951), (31, 1287741), (39, 1023589), (53, 753207), (89, 448539), (91, 438681), (93, 429247), (159, 251069), (217, 183963), (267, 149513), (273, 146227), (371, 107601), (403, 99057), (623, 64077), (651, 61321), (689, 57939), (1113, 35867), (1157, 34503), (1209, 33019), (1643, 24297), (1869, 21359), (2067, 19313), (2759, 14469), (2821, 14151), (3471, 11501), (4717, 8463), (4823, 8277), (4929, 8099)]