20535998

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1$

素因数の和:345

約数の個数: 48

約数和(自身を含む): 38782800

約数和(自身を除く): 18246802

約数列:

[1, 2, 7, 14, 19, 38, 41, 49, 82, 98, 133, 266, 269, 287, 538, 574, 779, 931, 1558, 1862, 1883, 2009, 3766, 4018, 5111, 5453, 10222, 10906, 11029, 13181, 22058, 26362, 35777, 38171, 71554, 76342, 77203, 154406, 209551, 250439, 419102, 500878, 540421, 1080842, 1466857, 2933714, 10267999, 20535998]

約数ペア:

[(1, 20535998), (2, 10267999), (7, 2933714), (14, 1466857), (19, 1080842), (38, 540421), (41, 500878), (49, 419102), (82, 250439), (98, 209551), (133, 154406), (266, 77203), (269, 76342), (287, 71554), (538, 38171), (574, 35777), (779, 26362), (931, 22058), (1558, 13181), (1862, 11029), (1883, 10906), (2009, 10222), (3766, 5453), (4018, 5111)]