19887241

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{373}}^1$

素因数の和:552

約数の個数: 16

約数和(自身を含む): 22511808

約数和(自身を除く): 2624567

約数列:

[1, 11, 37, 131, 373, 407, 1441, 4103, 4847, 13801, 48863, 53317, 151811, 537493, 1807931, 19887241]

約数ペア:

[(1, 19887241), (11, 1807931), (37, 537493), (131, 151811), (373, 53317), (407, 48863), (1441, 13801), (4103, 4847)]