20439804

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2011}}^1$

素因数の和:2047

約数の個数: 72

約数和(自身を含む): 59941504

約数和(自身を除く): 39501700

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 84, 121, 132, 154, 231, 242, 308, 363, 462, 484, 726, 847, 924, 1452, 1694, 2011, 2541, 3388, 4022, 5082, 6033, 8044, 10164, 12066, 14077, 22121, 24132, 28154, 42231, 44242, 56308, 66363, 84462, 88484, 132726, 154847, 168924, 243331, 265452, 309694, 464541, 486662, 619388, 729993, 929082, 973324, 1459986, 1703317, 1858164, 2919972, 3406634, 5109951, 6813268, 10219902, 20439804]

約数ペア:

[(1, 20439804), (2, 10219902), (3, 6813268), (4, 5109951), (6, 3406634), (7, 2919972), (11, 1858164), (12, 1703317), (14, 1459986), (21, 973324), (22, 929082), (28, 729993), (33, 619388), (42, 486662), (44, 464541), (66, 309694), (77, 265452), (84, 243331), (121, 168924), (132, 154847), (154, 132726), (231, 88484), (242, 84462), (308, 66363), (363, 56308), (462, 44242), (484, 42231), (726, 28154), (847, 24132), (924, 22121), (1452, 14077), (1694, 12066), (2011, 10164), (2541, 8044), (3388, 6033), (4022, 5082)]