21578312

素因数分解:

$2^3\times 7^1\times {\mathrm{385327}}^1$

素因数の和:385340

約数の個数: 16

約数和(自身を含む): 46239360

約数和(自身を除く): 24661048

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 385327, 770654, 1541308, 2697289, 3082616, 5394578, 10789156, 21578312]

約数ペア:

[(1, 21578312), (2, 10789156), (4, 5394578), (7, 3082616), (8, 2697289), (14, 1541308), (28, 770654), (56, 385327)]