18835682978

素因数分解:

$2^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{3355127}}^1$

素因数の和:3355537

約数の個数: 16

約数和(自身を含む): 32370274944

約数和(自身を除く): 13534591966

約数列:

[1, 2, 7, 14, 401, 802, 2807, 5614, 3355127, 6710254, 23485889, 46971778, 1345405927, 2690811854, 9417841489, 18835682978]

約数ペア:

[(1, 18835682978), (2, 9417841489), (7, 2690811854), (14, 1345405927), (401, 46971778), (802, 23485889), (2807, 6710254), (5614, 3355127)]