20902717

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{971}}^1$

素因数の和:1104

約数の個数: 16

約数和(自身を含む): 24261120

約数和(自身を除く): 3358403

約数列:

[1, 11, 19, 103, 209, 971, 1133, 1957, 10681, 18449, 21527, 100013, 202939, 1100143, 1900247, 20902717]

約数ペア:

[(1, 20902717), (11, 1900247), (19, 1100143), (103, 202939), (209, 100013), (971, 21527), (1133, 18449), (1957, 10681)]