19799864

素因数分解:

$2^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2699}}^1$

素因数の和:2843

約数の個数: 32

約数和(自身を含む): 42768000

約数和(自身を除く): 22968136

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 131, 262, 524, 917, 1048, 1834, 2699, 3668, 5398, 7336, 10796, 18893, 21592, 37786, 75572, 151144, 353569, 707138, 1414276, 2474983, 2828552, 4949966, 9899932, 19799864]

約数ペア:

[(1, 19799864), (2, 9899932), (4, 4949966), (7, 2828552), (8, 2474983), (14, 1414276), (28, 707138), (56, 353569), (131, 151144), (262, 75572), (524, 37786), (917, 21592), (1048, 18893), (1834, 10796), (2699, 7336), (3668, 5398)]