21151123

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1459}}^1$

素因数の和:1594

約数の個数: 16

約数和(自身を含む): 25696000

約数和(自身を除く): 4544877

約数列:

[1, 7, 19, 109, 133, 763, 1459, 2071, 10213, 14497, 27721, 159031, 194047, 1113217, 3021589, 21151123]

約数ペア:

[(1, 21151123), (7, 3021589), (19, 1113217), (109, 194047), (133, 159031), (763, 27721), (1459, 14497), (2071, 10213)]