209401993

素因数分解:

${\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{233}}^1\times {\mathrm{547}}^1$

素因数の和:864

約数の個数: 16

約数和(自身を含む): 221584896

約数和(自身を除く): 12182903

約数列:

[1, 31, 53, 233, 547, 1643, 7223, 12349, 16957, 28991, 127451, 382819, 898721, 3950981, 6754903, 209401993]

約数ペア:

[(1, 209401993), (31, 6754903), (53, 3950981), (233, 898721), (547, 382819), (1643, 127451), (7223, 28991), (12349, 16957)]