21021994

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{40583}}^1$

素因数の和:40629

約数の個数: 16

約数和(自身を含む): 37012608

約数和(自身を除く): 15990614

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 40583, 81166, 284081, 568162, 1501571, 3003142, 10510997, 21021994]

約数ペア:

[(1, 21021994), (2, 10510997), (7, 3003142), (14, 1501571), (37, 568162), (74, 284081), (259, 81166), (518, 40583)]