21175112

素因数分解:

$2^3\times 7^1\times {\mathrm{378127}}^1$

素因数の和:378140

約数の個数: 16

約数和(自身を含む): 45375360

約数和(自身を除く): 24200248

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 378127, 756254, 1512508, 2646889, 3025016, 5293778, 10587556, 21175112]

約数ペア:

[(1, 21175112), (2, 10587556), (4, 5293778), (7, 3025016), (8, 2646889), (14, 1512508), (28, 756254), (56, 378127)]