21199438

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{503}}^1\times {\mathrm{1621}}^1$

素因数の和:2139

約数の個数: 16

約数和(自身を含む): 34334496

約数和(自身を除く): 13135058

約数列:

[1, 2, 13, 26, 503, 1006, 1621, 3242, 6539, 13078, 21073, 42146, 815363, 1630726, 10599719, 21199438]

約数ペア:

[(1, 21199438), (2, 10599719), (13, 1630726), (26, 815363), (503, 42146), (1006, 21073), (1621, 13078), (3242, 6539)]