21174854

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{3221}}^1$

素因数の和:3415

約数の個数: 16

約数和(自身を含む): 33637680

約数和(自身を除く): 12462826

約数列:

[1, 2, 19, 38, 173, 346, 3221, 3287, 6442, 6574, 61199, 122398, 557233, 1114466, 10587427, 21174854]

約数ペア:

[(1, 21174854), (2, 10587427), (19, 1114466), (38, 557233), (173, 122398), (346, 61199), (3221, 6574), (3287, 6442)]