19722448

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2339}}^1$

素因数の和:2395

約数の個数: 40

約数和(自身を含む): 41783040

約数和(自身を除く): 22060592

約数列:

[1, 2, 4, 8, 16, 17, 31, 34, 62, 68, 124, 136, 248, 272, 496, 527, 1054, 2108, 2339, 4216, 4678, 8432, 9356, 18712, 37424, 39763, 72509, 79526, 145018, 159052, 290036, 318104, 580072, 636208, 1160144, 1232653, 2465306, 4930612, 9861224, 19722448]

約数ペア:

[(1, 19722448), (2, 9861224), (4, 4930612), (8, 2465306), (16, 1232653), (17, 1160144), (31, 636208), (34, 580072), (62, 318104), (68, 290036), (124, 159052), (136, 145018), (248, 79526), (272, 72509), (496, 39763), (527, 37424), (1054, 18712), (2108, 9356), (2339, 8432), (4216, 4678)]