21680416

素因数分解:

$2^5\times {\mathrm{73}}^1\times {\mathrm{9281}}^1$

素因数の和:9364

約数の個数: 24

約数和(自身を含む): 43272684

約数和(自身を除く): 21592268

約数列:

[1, 2, 4, 8, 16, 32, 73, 146, 292, 584, 1168, 2336, 9281, 18562, 37124, 74248, 148496, 296992, 677513, 1355026, 2710052, 5420104, 10840208, 21680416]

約数ペア:

[(1, 21680416), (2, 10840208), (4, 5420104), (8, 2710052), (16, 1355026), (32, 677513), (73, 296992), (146, 148496), (292, 74248), (584, 37124), (1168, 18562), (2336, 9281)]