21139613

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1319}}^1$

素因数の和:1408

約数の個数: 16

約数和(自身を含む): 24330240

約数和(自身を除く): 3190627

約数列:

[1, 11, 31, 47, 341, 517, 1319, 1457, 14509, 16027, 40889, 61993, 449779, 681923, 1921783, 21139613]

約数ペア:

[(1, 21139613), (11, 1921783), (31, 681923), (47, 449779), (341, 61993), (517, 40889), (1319, 16027), (1457, 14509)]