20558824

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17971}}^1$

素因数の和:18001

約数の個数: 32

約数和(自身を含む): 45289440

約数和(自身を除く): 24730616

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 17971, 35942, 71884, 143768, 197681, 233623, 395362, 467246, 790724, 934492, 1581448, 1868984, 2569853, 5139706, 10279412, 20558824]

約数ペア:

[(1, 20558824), (2, 10279412), (4, 5139706), (8, 2569853), (11, 1868984), (13, 1581448), (22, 934492), (26, 790724), (44, 467246), (52, 395362), (88, 233623), (104, 197681), (143, 143768), (286, 71884), (572, 35942), (1144, 17971)]