19507816

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:529

約数の個数: 32

約数和(自身を含む): 37648800

約数和(自身を除く): 18140984

約数列:

[1, 2, 4, 8, 53, 106, 139, 212, 278, 331, 424, 556, 662, 1112, 1324, 2648, 7367, 14734, 17543, 29468, 35086, 46009, 58936, 70172, 92018, 140344, 184036, 368072, 2438477, 4876954, 9753908, 19507816]

約数ペア:

[(1, 19507816), (2, 9753908), (4, 4876954), (8, 2438477), (53, 368072), (106, 184036), (139, 140344), (212, 92018), (278, 70172), (331, 58936), (424, 46009), (556, 35086), (662, 29468), (1112, 17543), (1324, 14734), (2648, 7367)]