20671784

素因数分解:

$2^3\times 7^1\times {\mathrm{419}}^1\times {\mathrm{881}}^1$

素因数の和:1313

約数の個数: 32

約数和(自身を含む): 44452800

約数和(自身を除く): 23781016

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 419, 838, 881, 1676, 1762, 2933, 3352, 3524, 5866, 6167, 7048, 11732, 12334, 23464, 24668, 49336, 369139, 738278, 1476556, 2583973, 2953112, 5167946, 10335892, 20671784]

約数ペア:

[(1, 20671784), (2, 10335892), (4, 5167946), (7, 2953112), (8, 2583973), (14, 1476556), (28, 738278), (56, 369139), (419, 49336), (838, 24668), (881, 23464), (1676, 12334), (1762, 11732), (2933, 7048), (3352, 6167), (3524, 5866)]