21577768

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{141959}}^1$

素因数の和:141984

約数の個数: 16

約数和(自身を含む): 42588000

約数和(自身を除く): 21010232

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 141959, 283918, 567836, 1135672, 2697221, 5394442, 10788884, 21577768]

約数ペア:

[(1, 21577768), (2, 10788884), (4, 5394442), (8, 2697221), (19, 1135672), (38, 567836), (76, 283918), (152, 141959)]