20621034196

素因数分解:

$2^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{41719}}^1$

素因数の和:41996

約数の個数: 48

約数和(自身を含む): 41866854400

約数和(自身を除く): 21245820204

約数列:

[1, 2, 4, 7, 14, 28, 127, 139, 254, 278, 508, 556, 889, 973, 1778, 1946, 3556, 3892, 17653, 35306, 41719, 70612, 83438, 123571, 166876, 247142, 292033, 494284, 584066, 1168132, 5298313, 5798941, 10596626, 11597882, 21193252, 23195764, 37088191, 40592587, 74176382, 81185174, 148352764, 162370348, 736465507, 1472931014, 2945862028, 5155258549, 10310517098, 20621034196]

約数ペア:

[(1, 20621034196), (2, 10310517098), (4, 5155258549), (7, 2945862028), (14, 1472931014), (28, 736465507), (127, 162370348), (139, 148352764), (254, 81185174), (278, 74176382), (508, 40592587), (556, 37088191), (889, 23195764), (973, 21193252), (1778, 11597882), (1946, 10596626), (3556, 5798941), (3892, 5298313), (17653, 1168132), (35306, 584066), (41719, 494284), (70612, 292033), (83438, 247142), (123571, 166876)]