217872963

素因数分解:

$3^3\times 7^2\times {\mathrm{11}}^2\times {\mathrm{1361}}^1$

素因数の和:1406

約数の個数: 72

約数和(自身を含む): 413012880

約数和(自身を除く): 195139917

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 49, 63, 77, 99, 121, 147, 189, 231, 297, 363, 441, 539, 693, 847, 1089, 1323, 1361, 1617, 2079, 2541, 3267, 4083, 4851, 5929, 7623, 9527, 12249, 14553, 14971, 17787, 22869, 28581, 36747, 44913, 53361, 66689, 85743, 104797, 134739, 160083, 164681, 200067, 257229, 314391, 404217, 494043, 600201, 733579, 943173, 1152767, 1482129, 1800603, 2200737, 2829519, 3458301, 4446387, 6602211, 8069369, 10374903, 19806633, 24208107, 31124709, 72624321, 217872963]

約数ペア:

[(1, 217872963), (3, 72624321), (7, 31124709), (9, 24208107), (11, 19806633), (21, 10374903), (27, 8069369), (33, 6602211), (49, 4446387), (63, 3458301), (77, 2829519), (99, 2200737), (121, 1800603), (147, 1482129), (189, 1152767), (231, 943173), (297, 733579), (363, 600201), (441, 494043), (539, 404217), (693, 314391), (847, 257229), (1089, 200067), (1323, 164681), (1361, 160083), (1617, 134739), (2079, 104797), (2541, 85743), (3267, 66689), (4083, 53361), (4851, 44913), (5929, 36747), (7623, 28581), (9527, 22869), (12249, 17787), (14553, 14971)]