217638369

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1$

素因数の和:511

約数の個数: 72

約数和(自身を含む): 380259360

約数和(自身を除く): 162620991

約数列:

[1, 3, 9, 13, 17, 19, 39, 51, 57, 117, 153, 169, 171, 221, 247, 323, 443, 507, 663, 741, 969, 1329, 1521, 1989, 2223, 2873, 2907, 3211, 3987, 4199, 5759, 7531, 8417, 8619, 9633, 12597, 17277, 22593, 25251, 25857, 28899, 37791, 51831, 54587, 67779, 74867, 75753, 97903, 109421, 143089, 163761, 224601, 293709, 328263, 429267, 491283, 673803, 881127, 984789, 1272739, 1287801, 1422473, 1860157, 3818217, 4267419, 5580471, 11454651, 12802257, 16741413, 24182041, 72546123, 217638369]

約数ペア:

[(1, 217638369), (3, 72546123), (9, 24182041), (13, 16741413), (17, 12802257), (19, 11454651), (39, 5580471), (51, 4267419), (57, 3818217), (117, 1860157), (153, 1422473), (169, 1287801), (171, 1272739), (221, 984789), (247, 881127), (323, 673803), (443, 491283), (507, 429267), (663, 328263), (741, 293709), (969, 224601), (1329, 163761), (1521, 143089), (1989, 109421), (2223, 97903), (2873, 75753), (2907, 74867), (3211, 67779), (3987, 54587), (4199, 51831), (5759, 37791), (7531, 28899), (8417, 25857), (8619, 25251), (9633, 22593), (12597, 17277)]