20749806

素因数分解:

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

素因数の和:1398

約数の個数: 72

約数和(自身を含む): 56517552

約数和(自身を除く): 35767746

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 121, 126, 154, 198, 231, 242, 363, 462, 693, 726, 847, 1089, 1361, 1386, 1694, 2178, 2541, 2722, 4083, 5082, 7623, 8166, 9527, 12249, 14971, 15246, 19054, 24498, 28581, 29942, 44913, 57162, 85743, 89826, 104797, 134739, 164681, 171486, 209594, 269478, 314391, 329362, 494043, 628782, 943173, 988086, 1152767, 1482129, 1886346, 2305534, 2964258, 3458301, 6916602, 10374903, 20749806]

約数ペア:

[(1, 20749806), (2, 10374903), (3, 6916602), (6, 3458301), (7, 2964258), (9, 2305534), (11, 1886346), (14, 1482129), (18, 1152767), (21, 988086), (22, 943173), (33, 628782), (42, 494043), (63, 329362), (66, 314391), (77, 269478), (99, 209594), (121, 171486), (126, 164681), (154, 134739), (198, 104797), (231, 89826), (242, 85743), (363, 57162), (462, 44913), (693, 29942), (726, 28581), (847, 24498), (1089, 19054), (1361, 15246), (1386, 14971), (1694, 12249), (2178, 9527), (2541, 8166), (2722, 7623), (4083, 5082)]