21340021

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1039}}^1$

素因数の和:1128

約数の個数: 16

約数和(自身を含む): 23961600

約数和(自身を除く): 2621579

約数列:

[1, 19, 23, 47, 437, 893, 1039, 1081, 19741, 20539, 23897, 48833, 454043, 927827, 1123159, 21340021]

約数ペア:

[(1, 21340021), (19, 1123159), (23, 927827), (47, 454043), (437, 48833), (893, 23897), (1039, 20539), (1081, 19741)]