21264529

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4019}}^1$

素因数の和:4080

約数の個数: 16

約数和(自身を含む): 25663680

約数和(自身を除く): 4399151

約数列:

[1, 11, 13, 37, 143, 407, 481, 4019, 5291, 44209, 52247, 148703, 574717, 1635733, 1933139, 21264529]

約数ペア:

[(1, 21264529), (11, 1933139), (13, 1635733), (37, 574717), (143, 148703), (407, 52247), (481, 44209), (4019, 5291)]