20695395

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{761}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 39611808

約数和(自身を除く): 18916413

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 49, 105, 111, 147, 185, 245, 259, 555, 735, 761, 777, 1295, 1813, 2283, 3805, 3885, 5327, 5439, 9065, 11415, 15981, 26635, 27195, 28157, 37289, 79905, 84471, 111867, 140785, 186445, 197099, 422355, 559335, 591297, 985495, 1379693, 2956485, 4139079, 6898465, 20695395]

約数ペア:

[(1, 20695395), (3, 6898465), (5, 4139079), (7, 2956485), (15, 1379693), (21, 985495), (35, 591297), (37, 559335), (49, 422355), (105, 197099), (111, 186445), (147, 140785), (185, 111867), (245, 84471), (259, 79905), (555, 37289), (735, 28157), (761, 27195), (777, 26635), (1295, 15981), (1813, 11415), (2283, 9065), (3805, 5439), (3885, 5327)]