21852272

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3389}}^1$

素因数の和:3441

約数の個数: 40

約数和(自身を含む): 47080320

約数和(自身を除く): 25228048

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 3389, 6448, 6778, 13556, 27112, 44057, 54224, 88114, 105059, 176228, 210118, 352456, 420236, 704912, 840472, 1365767, 1680944, 2731534, 5463068, 10926136, 21852272]

約数ペア:

[(1, 21852272), (2, 10926136), (4, 5463068), (8, 2731534), (13, 1680944), (16, 1365767), (26, 840472), (31, 704912), (52, 420236), (62, 352456), (104, 210118), (124, 176228), (208, 105059), (248, 88114), (403, 54224), (496, 44057), (806, 27112), (1612, 13556), (3224, 6778), (3389, 6448)]