19745128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{509}}^1$

素因数の和:901

約数の個数: 32

約数和(自身を含む): 40055400

約数和(自身を除く): 20310272

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 373, 509, 746, 1018, 1492, 2036, 2984, 4072, 4849, 6617, 9698, 13234, 19396, 26468, 38792, 52936, 189857, 379714, 759428, 1518856, 2468141, 4936282, 9872564, 19745128]

約数ペア:

[(1, 19745128), (2, 9872564), (4, 4936282), (8, 2468141), (13, 1518856), (26, 759428), (52, 379714), (104, 189857), (373, 52936), (509, 38792), (746, 26468), (1018, 19396), (1492, 13234), (2036, 9698), (2984, 6617), (4072, 4849)]