20818938

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{13397}}^1$

素因数の和:13446

約数の個数: 32

約数和(自身を含む): 48875904

約数和(自身を除く): 28056966

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 74, 111, 222, 259, 518, 777, 1554, 13397, 26794, 40191, 80382, 93779, 187558, 281337, 495689, 562674, 991378, 1487067, 2974134, 3469823, 6939646, 10409469, 20818938]

約数ペア:

[(1, 20818938), (2, 10409469), (3, 6939646), (6, 3469823), (7, 2974134), (14, 1487067), (21, 991378), (37, 562674), (42, 495689), (74, 281337), (111, 187558), (222, 93779), (259, 80382), (518, 40191), (777, 26794), (1554, 13397)]