21435453

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{829}}^1$

素因数の和:878

約数の個数: 36

約数和(自身を含む): 35542260

約数和(自身を除く): 14106807

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 169, 221, 507, 663, 829, 1521, 1989, 2487, 2873, 7461, 8619, 10777, 14093, 25857, 32331, 42279, 96993, 126837, 140101, 183209, 420303, 549627, 1260909, 1648881, 2381717, 7145151, 21435453]

約数ペア:

[(1, 21435453), (3, 7145151), (9, 2381717), (13, 1648881), (17, 1260909), (39, 549627), (51, 420303), (117, 183209), (153, 140101), (169, 126837), (221, 96993), (507, 42279), (663, 32331), (829, 25857), (1521, 14093), (1989, 10777), (2487, 8619), (2873, 7461)]