19490256

素因数分解:

$2^4\times 3^2\times {\mathrm{135349}}^1$

素因数の和:135363

約数の個数: 30

約数和(自身を含む): 54546050

約数和(自身を除く): 35055794

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 135349, 270698, 406047, 541396, 812094, 1082792, 1218141, 1624188, 2165584, 2436282, 3248376, 4872564, 6496752, 9745128, 19490256]

約数ペア:

[(1, 19490256), (2, 9745128), (3, 6496752), (4, 4872564), (6, 3248376), (8, 2436282), (9, 2165584), (12, 1624188), (16, 1218141), (18, 1082792), (24, 812094), (36, 541396), (48, 406047), (72, 270698), (144, 135349)]