20787688207

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{206783}}^1$

素因数の和:206863

約数の個数: 32

約数和(自身を含む): 26402181120

約数和(自身を除く): 5614492913

約数列:

[1, 11, 13, 19, 37, 143, 209, 247, 407, 481, 703, 2717, 5291, 7733, 9139, 100529, 206783, 2274613, 2688179, 3928877, 7650971, 29569969, 43217647, 51075401, 84160681, 99462623, 145368449, 561829411, 1094088853, 1599052939, 1889789837, 20787688207]

約数ペア:

[(1, 20787688207), (11, 1889789837), (13, 1599052939), (19, 1094088853), (37, 561829411), (143, 145368449), (209, 99462623), (247, 84160681), (407, 51075401), (481, 43217647), (703, 29569969), (2717, 7650971), (5291, 3928877), (7733, 2688179), (9139, 2274613), (100529, 206783)]