18968621

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1433}}^1$

素因数の和:1532

約数の個数: 16

約数和(自身を含む): 22760448

約数和(自身を除く): 3791827

約数列:

[1, 7, 31, 61, 217, 427, 1433, 1891, 10031, 13237, 44423, 87413, 310961, 611891, 2709803, 18968621]

約数ペア:

[(1, 18968621), (7, 2709803), (31, 611891), (61, 310961), (217, 87413), (427, 44423), (1433, 13237), (1891, 10031)]