18871996

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{32993}}^1$

素因数の和:33021

約数の個数: 24

約数和(自身を含む): 38800944

約数和(自身を除く): 19928948

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 32993, 65986, 131972, 362923, 428909, 725846, 857818, 1451692, 1715636, 4717999, 9435998, 18871996]

約数ペア:

[(1, 18871996), (2, 9435998), (4, 4717999), (11, 1715636), (13, 1451692), (22, 857818), (26, 725846), (44, 428909), (52, 362923), (143, 131972), (286, 65986), (572, 32993)]