21259546

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{1087}}^1$

素因数の和:1234

約数の個数: 32

約数和(自身を含む): 40108032

約数和(自身を除く): 18848486

約数列:

[1, 2, 7, 11, 14, 22, 77, 127, 154, 254, 889, 1087, 1397, 1778, 2174, 2794, 7609, 9779, 11957, 15218, 19558, 23914, 83699, 138049, 167398, 276098, 966343, 1518539, 1932686, 3037078, 10629773, 21259546]

約数ペア:

[(1, 21259546), (2, 10629773), (7, 3037078), (11, 1932686), (14, 1518539), (22, 966343), (77, 276098), (127, 167398), (154, 138049), (254, 83699), (889, 23914), (1087, 19558), (1397, 15218), (1778, 11957), (2174, 9779), (2794, 7609)]