21645481

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4091}}^1$

素因数の和:4152

約数の個数: 16

約数和(自身を含む): 26123328

約数和(自身を除く): 4477847

約数列:

[1, 11, 13, 37, 143, 407, 481, 4091, 5291, 45001, 53183, 151367, 585013, 1665037, 1967771, 21645481]

約数ペア:

[(1, 21645481), (11, 1967771), (13, 1665037), (37, 585013), (143, 151367), (407, 53183), (481, 45001), (4091, 5291)]