18031925

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{439}}^1$

素因数の和:533

約数の個数: 24

約数和(自身を含む): 23569920

約数和(自身を除く): 5537995

約数列:

[1, 5, 25, 31, 53, 155, 265, 439, 775, 1325, 1643, 2195, 8215, 10975, 13609, 23267, 41075, 68045, 116335, 340225, 581675, 721277, 3606385, 18031925]

約数ペア:

[(1, 18031925), (5, 3606385), (25, 721277), (31, 581675), (53, 340225), (155, 116335), (265, 68045), (439, 41075), (775, 23267), (1325, 13609), (1643, 10975), (2195, 8215)]