21105799

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3989}}^1$

素因数の和:4050

約数の個数: 16

約数和(自身を含む): 25472160

約数和(自身を除く): 4366361

約数列:

[1, 11, 13, 37, 143, 407, 481, 3989, 5291, 43879, 51857, 147593, 570427, 1623523, 1918709, 21105799]

約数ペア:

[(1, 21105799), (11, 1918709), (13, 1623523), (37, 570427), (143, 147593), (407, 51857), (481, 43879), (3989, 5291)]