18852218

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{379}}^1$

素因数の和:435

約数の個数: 64

約数和(自身を含む): 39398400

約数和(自身を除く): 20546182

約数列:

[1, 2, 7, 11, 14, 17, 19, 22, 34, 38, 77, 119, 133, 154, 187, 209, 238, 266, 323, 374, 379, 418, 646, 758, 1309, 1463, 2261, 2618, 2653, 2926, 3553, 4169, 4522, 5306, 6443, 7106, 7201, 8338, 12886, 14402, 24871, 29183, 45101, 49742, 50407, 58366, 70873, 79211, 90202, 100814, 122417, 141746, 158422, 244834, 496111, 554477, 856919, 992222, 1108954, 1346587, 1713838, 2693174, 9426109, 18852218]

約数ペア:

[(1, 18852218), (2, 9426109), (7, 2693174), (11, 1713838), (14, 1346587), (17, 1108954), (19, 992222), (22, 856919), (34, 554477), (38, 496111), (77, 244834), (119, 158422), (133, 141746), (154, 122417), (187, 100814), (209, 90202), (238, 79211), (266, 70873), (323, 58366), (374, 50407), (379, 49742), (418, 45101), (646, 29183), (758, 24871), (1309, 14402), (1463, 12886), (2261, 8338), (2618, 7201), (2653, 7106), (2926, 6443), (3553, 5306), (4169, 4522)]