18718544

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2903}}^1$

素因数の和:2955

約数の個数: 40

約数和(自身を含む): 40330752

約数和(自身を除く): 21612208

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 2903, 3224, 5806, 6448, 11612, 23224, 37739, 46448, 75478, 89993, 150956, 179986, 301912, 359972, 603824, 719944, 1169909, 1439888, 2339818, 4679636, 9359272, 18718544]

約数ペア:

[(1, 18718544), (2, 9359272), (4, 4679636), (8, 2339818), (13, 1439888), (16, 1169909), (26, 719944), (31, 603824), (52, 359972), (62, 301912), (104, 179986), (124, 150956), (208, 89993), (248, 75478), (403, 46448), (496, 37739), (806, 23224), (1612, 11612), (2903, 6448), (3224, 5806)]