19182256

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{647}}^1$

素因数の和:781

約数の個数: 40

約数和(自身を含む): 39774240

約数和(自身を除く): 20591984

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 109, 136, 218, 272, 436, 647, 872, 1294, 1744, 1853, 2588, 3706, 5176, 7412, 10352, 10999, 14824, 21998, 29648, 43996, 70523, 87992, 141046, 175984, 282092, 564184, 1128368, 1198891, 2397782, 4795564, 9591128, 19182256]

約数ペア:

[(1, 19182256), (2, 9591128), (4, 4795564), (8, 2397782), (16, 1198891), (17, 1128368), (34, 564184), (68, 282092), (109, 175984), (136, 141046), (218, 87992), (272, 70523), (436, 43996), (647, 29648), (872, 21998), (1294, 14824), (1744, 10999), (1853, 10352), (2588, 7412), (3706, 5176)]