2172709

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:193

約数の個数: 24

約数和(自身を含む): 2872800

約数和(自身を除く): 700091

約数列:

[1, 7, 11, 29, 49, 77, 139, 203, 319, 539, 973, 1421, 1529, 2233, 4031, 6811, 10703, 15631, 28217, 44341, 74921, 197519, 310387, 2172709]

約数ペア:

[(1, 2172709), (7, 310387), (11, 197519), (29, 74921), (49, 44341), (77, 28217), (139, 15631), (203, 10703), (319, 6811), (539, 4031), (973, 2233), (1421, 1529)]