20556952

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1259}}^1$

素因数の和:1435

約数の個数: 32

約数和(自身を含む): 41806800

約数和(自身を除く): 21249848

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 157, 314, 628, 1256, 1259, 2041, 2518, 4082, 5036, 8164, 10072, 16328, 16367, 32734, 65468, 130936, 197663, 395326, 790652, 1581304, 2569619, 5139238, 10278476, 20556952]

約数ペア:

[(1, 20556952), (2, 10278476), (4, 5139238), (8, 2569619), (13, 1581304), (26, 790652), (52, 395326), (104, 197663), (157, 130936), (314, 65468), (628, 32734), (1256, 16367), (1259, 16328), (2041, 10072), (2518, 8164), (4082, 5036)]