28606809

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3347}}^1$

素因数の和:3405

約数の個数: 32

約数和(自身を含む): 48854016

約数和(自身を除く): 20247207

約数列:

[1, 3, 7, 11, 21, 33, 37, 77, 111, 231, 259, 407, 777, 1221, 2849, 3347, 8547, 10041, 23429, 36817, 70287, 110451, 123839, 257719, 371517, 773157, 866873, 1362229, 2600619, 4086687, 9535603, 28606809]

約数ペア:

[(1, 28606809), (3, 9535603), (7, 4086687), (11, 2600619), (21, 1362229), (33, 866873), (37, 773157), (77, 371517), (111, 257719), (231, 123839), (259, 110451), (407, 70287), (777, 36817), (1221, 23429), (2849, 10041), (3347, 8547)]