21040888

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{1321}}^1$

素因数の和:1519

約数の個数: 32

約数和(自身を含む): 43308720

約数和(自身を除く): 22267832

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 181, 362, 724, 1321, 1448, 1991, 2642, 3982, 5284, 7964, 10568, 14531, 15928, 29062, 58124, 116248, 239101, 478202, 956404, 1912808, 2630111, 5260222, 10520444, 21040888]

約数ペア:

[(1, 21040888), (2, 10520444), (4, 5260222), (8, 2630111), (11, 1912808), (22, 956404), (44, 478202), (88, 239101), (181, 116248), (362, 58124), (724, 29062), (1321, 15928), (1448, 14531), (1991, 10568), (2642, 7964), (3982, 5284)]