19999212

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{569}}^1$

素因数の和:706

約数の個数: 48

約数和(自身を含む): 48837600

約数和(自身を除く): 28838388

約数列:

[1, 2, 3, 4, 6, 12, 29, 58, 87, 101, 116, 174, 202, 303, 348, 404, 569, 606, 1138, 1212, 1707, 2276, 2929, 3414, 5858, 6828, 8787, 11716, 16501, 17574, 33002, 35148, 49503, 57469, 66004, 99006, 114938, 172407, 198012, 229876, 344814, 689628, 1666601, 3333202, 4999803, 6666404, 9999606, 19999212]

約数ペア:

[(1, 19999212), (2, 9999606), (3, 6666404), (4, 4999803), (6, 3333202), (12, 1666601), (29, 689628), (58, 344814), (87, 229876), (101, 198012), (116, 172407), (174, 114938), (202, 99006), (303, 66004), (348, 57469), (404, 49503), (569, 35148), (606, 33002), (1138, 17574), (1212, 16501), (1707, 11716), (2276, 8787), (2929, 6828), (3414, 5858)]