19139989

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2\times {\mathrm{41}}^1$

素因数の和:157

約数の個数: 24

約数和(自身を含む): 22692096

約数和(自身を除く): 3552107

約数列:

[1, 11, 31, 37, 41, 341, 407, 451, 1147, 1271, 1369, 1517, 12617, 13981, 15059, 16687, 42439, 47027, 56129, 466829, 517297, 617419, 1739999, 19139989]

約数ペア:

[(1, 19139989), (11, 1739999), (31, 617419), (37, 517297), (41, 466829), (341, 56129), (407, 47027), (451, 42439), (1147, 16687), (1271, 15059), (1369, 13981), (1517, 12617)]