20495216

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5903}}^1$

素因数の和:5949

約数の個数: 40

約数和(自身を含む): 46854144

約数和(自身を除く): 26358928

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 5903, 11806, 23612, 41321, 47224, 82642, 94448, 165284, 182993, 330568, 365986, 661136, 731972, 1280951, 1463944, 2561902, 2927888, 5123804, 10247608, 20495216]

約数ペア:

[(1, 20495216), (2, 10247608), (4, 5123804), (7, 2927888), (8, 2561902), (14, 1463944), (16, 1280951), (28, 731972), (31, 661136), (56, 365986), (62, 330568), (112, 182993), (124, 165284), (217, 94448), (248, 82642), (434, 47224), (496, 41321), (868, 23612), (1736, 11806), (3472, 5903)]