20271405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17551}}^1$

素因数の和:17577

約数の個数: 32

約数和(自身を含む): 40439808

約数和(自身を除く): 20168403

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 17551, 52653, 87755, 122857, 193061, 263265, 368571, 579183, 614285, 965305, 1351427, 1842855, 2895915, 4054281, 6757135, 20271405]

約数ペア:

[(1, 20271405), (3, 6757135), (5, 4054281), (7, 2895915), (11, 1842855), (15, 1351427), (21, 965305), (33, 614285), (35, 579183), (55, 368571), (77, 263265), (105, 193061), (165, 122857), (231, 87755), (385, 52653), (1155, 17551)]