287538419

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{308849}}^1$

素因数の和:308882

約数の個数: 12

約数和(自身を含む): 352089000

約数和(自身を除く): 64550581

約数列:

[1, 7, 19, 49, 133, 931, 308849, 2161943, 5868131, 15133601, 41076917, 287538419]

約数ペア:

[(1, 287538419), (7, 41076917), (19, 15133601), (49, 5868131), (133, 2161943), (931, 308849)]