18988676

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{5099}}^1$

素因数の和:5136

約数の個数: 36

約数和(自身を含む): 40698000

約数和(自身を除く): 21709324

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 532, 931, 1862, 3724, 5099, 10198, 20396, 35693, 71386, 96881, 142772, 193762, 249851, 387524, 499702, 678167, 999404, 1356334, 2712668, 4747169, 9494338, 18988676]

約数ペア:

[(1, 18988676), (2, 9494338), (4, 4747169), (7, 2712668), (14, 1356334), (19, 999404), (28, 678167), (38, 499702), (49, 387524), (76, 249851), (98, 193762), (133, 142772), (196, 96881), (266, 71386), (532, 35693), (931, 20396), (1862, 10198), (3724, 5099)]