20656874

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{613}}^1$

素因数の和:734

約数の個数: 32

約数和(自身を含む): 37134720

約数和(自身を除く): 16477846

約数列:

[1, 2, 7, 14, 29, 58, 83, 166, 203, 406, 581, 613, 1162, 1226, 2407, 4291, 4814, 8582, 16849, 17777, 33698, 35554, 50879, 101758, 124439, 248878, 356153, 712306, 1475491, 2950982, 10328437, 20656874]

約数ペア:

[(1, 20656874), (2, 10328437), (7, 2950982), (14, 1475491), (29, 712306), (58, 356153), (83, 248878), (166, 124439), (203, 101758), (406, 50879), (581, 35554), (613, 33698), (1162, 17777), (1226, 16849), (2407, 8582), (4291, 4814)]