19948015

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1949}}^1$

素因数の和:2066

約数の個数: 16

約数和(自身を含む): 25272000

約数和(自身を除く): 5323985

約数列:

[1, 5, 23, 89, 115, 445, 1949, 2047, 9745, 10235, 44827, 173461, 224135, 867305, 3989603, 19948015]

約数ペア:

[(1, 19948015), (5, 3989603), (23, 867305), (89, 224135), (115, 173461), (445, 44827), (1949, 10235), (2047, 9745)]