21754768

素因数分解:

$2^4\times 7^1\times {\mathrm{194239}}^1$

素因数の和:194254

約数の個数: 20

約数和(自身を含む): 48171520

約数和(自身を除く): 26416752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 194239, 388478, 776956, 1359673, 1553912, 2719346, 3107824, 5438692, 10877384, 21754768]

約数ペア:

[(1, 21754768), (2, 10877384), (4, 5438692), (7, 3107824), (8, 2719346), (14, 1553912), (16, 1359673), (28, 776956), (56, 388478), (112, 194239)]