18181432

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3109}}^1$

素因数の和:3175

約数の個数: 32

約数和(自身を含む): 36946800

約数和(自身を除く): 18765368

約数列:

[1, 2, 4, 8, 17, 34, 43, 68, 86, 136, 172, 344, 731, 1462, 2924, 3109, 5848, 6218, 12436, 24872, 52853, 105706, 133687, 211412, 267374, 422824, 534748, 1069496, 2272679, 4545358, 9090716, 18181432]

約数ペア:

[(1, 18181432), (2, 9090716), (4, 4545358), (8, 2272679), (17, 1069496), (34, 534748), (43, 422824), (68, 267374), (86, 211412), (136, 133687), (172, 105706), (344, 52853), (731, 24872), (1462, 12436), (2924, 6218), (3109, 5848)]