21553210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{307903}}^1$

素因数の和:307917

約数の個数: 16

約数和(自身を含む): 44338176

約数和(自身を除く): 22784966

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 307903, 615806, 1539515, 2155321, 3079030, 4310642, 10776605, 21553210]

約数ペア:

[(1, 21553210), (2, 10776605), (5, 4310642), (7, 3079030), (10, 2155321), (14, 1539515), (35, 615806), (70, 307903)]