19715824

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{42491}}^1$

素因数の和:42528

約数の個数: 20

約数和(自身を含む): 39517560

約数和(自身を除く): 19801736

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 42491, 84982, 169964, 339928, 679856, 1232239, 2464478, 4928956, 9857912, 19715824]

約数ペア:

[(1, 19715824), (2, 9857912), (4, 4928956), (8, 2464478), (16, 1232239), (29, 679856), (58, 339928), (116, 169964), (232, 84982), (464, 42491)]