19955992

素因数分解:

$2^3\times 7^1\times {\mathrm{367}}^1\times {\mathrm{971}}^1$

素因数の和:1351

約数の個数: 32

約数和(自身を含む): 42923520

約数和(自身を除く): 22967528

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 367, 734, 971, 1468, 1942, 2569, 2936, 3884, 5138, 6797, 7768, 10276, 13594, 20552, 27188, 54376, 356357, 712714, 1425428, 2494499, 2850856, 4988998, 9977996, 19955992]

約数ペア:

[(1, 19955992), (2, 9977996), (4, 4988998), (7, 2850856), (8, 2494499), (14, 1425428), (28, 712714), (56, 356357), (367, 54376), (734, 27188), (971, 20552), (1468, 13594), (1942, 10276), (2569, 7768), (2936, 6797), (3884, 5138)]