20212147892

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{641}}^1\times {\mathrm{27277}}^1$

素因数の和:27956

約数の個数: 36

約数和(自身を含む): 37634310924

約数和(自身を除く): 17422163032

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 641, 1156, 1282, 2564, 10897, 21794, 27277, 43588, 54554, 109108, 185249, 370498, 463709, 740996, 927418, 1854836, 7883053, 15766106, 17484557, 31532212, 34969114, 69938228, 297237469, 594474938, 1188949876, 5053036973, 10106073946, 20212147892]

約数ペア:

[(1, 20212147892), (2, 10106073946), (4, 5053036973), (17, 1188949876), (34, 594474938), (68, 297237469), (289, 69938228), (578, 34969114), (641, 31532212), (1156, 17484557), (1282, 15766106), (2564, 7883053), (10897, 1854836), (21794, 927418), (27277, 740996), (43588, 463709), (54554, 370498), (109108, 185249)]