18821992

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^2\times {\mathrm{1163}}^1$

素因数の和:1210

約数の個数: 48

約数和(自身を含む): 42881760

約数和(自身を除く): 24059768

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 238, 289, 476, 578, 952, 1156, 1163, 2023, 2312, 2326, 4046, 4652, 8092, 8141, 9304, 16184, 16282, 19771, 32564, 39542, 65128, 79084, 138397, 158168, 276794, 336107, 553588, 672214, 1107176, 1344428, 2352749, 2688856, 4705498, 9410996, 18821992]

約数ペア:

[(1, 18821992), (2, 9410996), (4, 4705498), (7, 2688856), (8, 2352749), (14, 1344428), (17, 1107176), (28, 672214), (34, 553588), (56, 336107), (68, 276794), (119, 158168), (136, 138397), (238, 79084), (289, 65128), (476, 39542), (578, 32564), (952, 19771), (1156, 16282), (1163, 16184), (2023, 9304), (2312, 8141), (2326, 8092), (4046, 4652)]