20439606

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{181}}^1$

素因数の和:285

約数の個数: 64

約数和(自身を含む): 47174400

約数和(自身を除く): 26734794

約数列:

[1, 2, 3, 6, 11, 22, 29, 33, 58, 59, 66, 87, 118, 174, 177, 181, 319, 354, 362, 543, 638, 649, 957, 1086, 1298, 1711, 1914, 1947, 1991, 3422, 3894, 3982, 5133, 5249, 5973, 10266, 10498, 10679, 11946, 15747, 18821, 21358, 31494, 32037, 37642, 56463, 57739, 64074, 112926, 115478, 117469, 173217, 234938, 309691, 346434, 352407, 619382, 704814, 929073, 1858146, 3406601, 6813202, 10219803, 20439606]

約数ペア:

[(1, 20439606), (2, 10219803), (3, 6813202), (6, 3406601), (11, 1858146), (22, 929073), (29, 704814), (33, 619382), (58, 352407), (59, 346434), (66, 309691), (87, 234938), (118, 173217), (174, 117469), (177, 115478), (181, 112926), (319, 64074), (354, 57739), (362, 56463), (543, 37642), (638, 32037), (649, 31494), (957, 21358), (1086, 18821), (1298, 15747), (1711, 11946), (1914, 10679), (1947, 10498), (1991, 10266), (3422, 5973), (3894, 5249), (3982, 5133)]