21052185

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1657}}^1$

素因数の和:1694

約数の個数: 48

約数和(自身を含む): 42338688

約数和(自身を除く): 21286503

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 121, 165, 231, 363, 385, 605, 847, 1155, 1657, 1815, 2541, 4235, 4971, 8285, 11599, 12705, 18227, 24855, 34797, 54681, 57995, 91135, 127589, 173985, 200497, 273405, 382767, 601491, 637945, 1002485, 1403479, 1913835, 3007455, 4210437, 7017395, 21052185]

約数ペア:

[(1, 21052185), (3, 7017395), (5, 4210437), (7, 3007455), (11, 1913835), (15, 1403479), (21, 1002485), (33, 637945), (35, 601491), (55, 382767), (77, 273405), (105, 200497), (121, 173985), (165, 127589), (231, 91135), (363, 57995), (385, 54681), (605, 34797), (847, 24855), (1155, 18227), (1657, 12705), (1815, 11599), (2541, 8285), (4235, 4971)]