21166893

素因数分解:

$3^3\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:92

約数の個数: 64

約数和(自身を含む): 37478400

約数和(自身を除く): 16311507

約数列:

[1, 3, 9, 11, 19, 27, 31, 33, 57, 93, 99, 121, 171, 209, 279, 297, 341, 363, 513, 589, 627, 837, 1023, 1089, 1331, 1767, 1881, 2299, 3069, 3267, 3751, 3993, 5301, 5643, 6479, 6897, 9207, 11253, 11979, 15903, 19437, 20691, 25289, 33759, 35937, 41261, 58311, 62073, 71269, 75867, 101277, 123783, 174933, 213807, 227601, 371349, 641421, 682803, 783959, 1114047, 1924263, 2351877, 7055631, 21166893]

約数ペア:

[(1, 21166893), (3, 7055631), (9, 2351877), (11, 1924263), (19, 1114047), (27, 783959), (31, 682803), (33, 641421), (57, 371349), (93, 227601), (99, 213807), (121, 174933), (171, 123783), (209, 101277), (279, 75867), (297, 71269), (341, 62073), (363, 58311), (513, 41261), (589, 35937), (627, 33759), (837, 25289), (1023, 20691), (1089, 19437), (1331, 15903), (1767, 11979), (1881, 11253), (2299, 9207), (3069, 6897), (3267, 6479), (3751, 5643), (3993, 5301)]