21578214

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{513767}}^1$

素因数の和:513779

約数の個数: 16

約数和(自身を含む): 49321728

約数和(自身を除く): 27743514

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 513767, 1027534, 1541301, 3082602, 3596369, 7192738, 10789107, 21578214]

約数ペア:

[(1, 21578214), (2, 10789107), (3, 7192738), (6, 3596369), (7, 3082602), (14, 1541301), (21, 1027534), (42, 513767)]