20411408

素因数分解:

$2^4\times {\mathrm{167}}^1\times {\mathrm{7639}}^1$

素因数の和:7814

約数の個数: 20

約数和(自身を含む): 39789120

約数和(自身を除く): 19377712

約数列:

[1, 2, 4, 8, 16, 167, 334, 668, 1336, 2672, 7639, 15278, 30556, 61112, 122224, 1275713, 2551426, 5102852, 10205704, 20411408]

約数ペア:

[(1, 20411408), (2, 10205704), (4, 5102852), (8, 2551426), (16, 1275713), (167, 122224), (334, 61112), (668, 30556), (1336, 15278), (2672, 7639)]