19918444

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{54721}}^1$

素因数の和:54745

約数の個数: 24

約数和(自身を含む): 42902048

約数和(自身を除く): 22983604

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 54721, 109442, 218884, 383047, 711373, 766094, 1422746, 1532188, 2845492, 4979611, 9959222, 19918444]

約数ペア:

[(1, 19918444), (2, 9959222), (4, 4979611), (7, 2845492), (13, 1532188), (14, 1422746), (26, 766094), (28, 711373), (52, 383047), (91, 218884), (182, 109442), (364, 54721)]